Gait: Manner or style of walking.Musculoskeletal Physiological Processes: Biological actions and functions of the MUSCULOSKELETAL SYSTEM.Walking: An activity in which the body advances at a slow to moderate pace by moving the feet in a coordinated fashion. This includes recreational walking, walking for fitness, and competitive race-walking.Gait Disorders, Neurologic: Gait abnormalities that are a manifestation of nervous system dysfunction. These conditions may be caused by a wide variety of disorders which affect motor control, sensory feedback, and muscle strength including: CENTRAL NERVOUS SYSTEM DISEASES; PERIPHERAL NERVOUS SYSTEM DISEASES; NEUROMUSCULAR DISEASES; or MUSCULAR DISEASES.Biomechanical Phenomena: The properties, processes, and behavior of biological systems under the action of mechanical forces.Locomotion: Movement or the ability to move from one place or another. It can refer to humans, vertebrate or invertebrate animals, and microorganisms.Electromyography: Recording of the changes in electric potential of muscle by means of surface or needle electrodes.Cell Cycle: The complex series of phenomena, occurring between the end of one CELL DIVISION and the end of the next, by which cellular material is duplicated and then divided between two daughter cells. The cell cycle includes INTERPHASE, which includes G0 PHASE; G1 PHASE; S PHASE; and G2 PHASE, and CELL DIVISION PHASE.Leg: The inferior part of the lower extremity between the KNEE and the ANKLE.Gait Ataxia: Impairment of the ability to coordinate the movements required for normal ambulation (WALKING) which may result from impairments of motor function or sensory feedback. This condition may be associated with BRAIN DISEASES (including CEREBELLAR DISEASES and BASAL GANGLIA DISEASES); SPINAL CORD DISEASES; or PERIPHERAL NERVOUS SYSTEM DISEASES.Gait Apraxia: Impaired ambulation not attributed to sensory impairment or motor weakness. FRONTAL LOBE disorders; BASAL GANGLIA DISEASES (e.g., PARKINSONIAN DISORDERS); DEMENTIA, MULTI-INFARCT; ALZHEIMER DISEASE; and other conditions may be associated with gait apraxia.Menstrual Cycle: The period from onset of one menstrual bleeding (MENSTRUATION) to the next in an ovulating woman or female primate. The menstrual cycle is regulated by endocrine interactions of the HYPOTHALAMUS; the PITUITARY GLAND; the ovaries; and the genital tract. The menstrual cycle is divided by OVULATION into two phases. Based on the endocrine status of the OVARY, there is a FOLLICULAR PHASE and a LUTEAL PHASE. Based on the response in the ENDOMETRIUM, the menstrual cycle is divided into a proliferative and a secretory phase.Postural Balance: A POSTURE in which an ideal body mass distribution is achieved. Postural balance provides the body carriage stability and conditions for normal functions in stationary position or in movement, such as sitting, standing, or walking.Cell Cycle Proteins: Proteins that control the CELL DIVISION CYCLE. This family of proteins includes a wide variety of classes, including CYCLIN-DEPENDENT KINASES, mitogen-activated kinases, CYCLINS, and PHOSPHOPROTEIN PHOSPHATASES as well as their putative substrates such as chromatin-associated proteins, CYTOSKELETAL PROTEINS, and TRANSCRIPTION FACTORS.Orthotic Devices: Apparatus used to support, align, prevent, or correct deformities or to improve the function of movable parts of the body.Estrous Cycle: The period of cyclic physiological and behavior changes in non-primate female mammals that exhibit ESTRUS. The estrous cycle generally consists of 4 or 5 distinct periods corresponding to the endocrine status (PROESTRUS; ESTRUS; METESTRUS; DIESTRUS; and ANESTRUS).Ankle Joint: The joint that is formed by the inferior articular and malleolar articular surfaces of the TIBIA; the malleolar articular surface of the FIBULA; and the medial malleolar, lateral malleolar, and superior surfaces of the TALUS.Walkers: Walking aids generally having two handgrips and four legs.Foot: The distal extremity of the leg in vertebrates, consisting of the tarsus (ANKLE); METATARSUS; phalanges; and the soft tissues surrounding these bones.Citric Acid Cycle: A series of oxidative reactions in the breakdown of acetyl units derived from GLUCOSE; FATTY ACIDS; or AMINO ACIDS by means of tricarboxylic acid intermediates. The end products are CARBON DIOXIDE, water, and energy in the form of phosphate bonds.Accidental Falls: Falls due to slipping or tripping which may result in injury.AmputeesKnee Joint: A synovial hinge connection formed between the bones of the FEMUR; TIBIA; and PATELLA.Paresis: A general term referring to a mild to moderate degree of muscular weakness, occasionally used as a synonym for PARALYSIS (severe or complete loss of motor function). In the older literature, paresis often referred specifically to paretic neurosyphilis (see NEUROSYPHILIS). "General paresis" and "general paralysis" may still carry that connotation. Bilateral lower extremity paresis is referred to as PARAPARESIS.Newspapers: Publications printed and distributed daily, weekly, or at some other regular and usually short interval, containing news, articles of opinion (as editorials and letters), features, advertising, and announcements of current interest. (Webster's 3d ed)Portraits as Topic: Graphic representations, especially of the face, of real persons, usually posed, living or dead. (From Thesaurus for Graphic Materials II, p540, 1995)History, 17th Century: Time period from 1601 through 1700 of the common era.History of DentistrySocieties, Scientific: Societies whose membership is limited to scientists.Mass Media: Instruments or technological means of communication that reach large numbers of people with a common message: press, radio, television, etc.Magic: Beliefs and practices concerned with producing desired results through supernatural forces or agents as with the manipulation of fetishes or rituals.ShoesHeel: The back (or posterior) of the FOOT in PRIMATES, found behind the ANKLE and distal to the TOES.Foot Orthoses: Devices used to support or align the foot structure, or to prevent or correct foot deformities.Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Strikes, Employee: Work-related situations in which the employees as a group refuse to work until certain conditions of employment are granted by the employer.Forefoot, Human: The forepart of the foot including the metatarsals and the TOES.Wheelchairs: Chairs mounted on wheels and designed to be propelled by the occupant.Architectural Accessibility: Designs for approaching areas inside or outside facilities.Paraplegia: Severe or complete loss of motor function in the lower extremities and lower portions of the trunk. This condition is most often associated with SPINAL CORD DISEASES, although BRAIN DISEASES; PERIPHERAL NERVOUS SYSTEM DISEASES; NEUROMUSCULAR DISEASES; and MUSCULAR DISEASES may also cause bilateral leg weakness.Diving: An activity in which the organism plunges into water. It includes scuba and bell diving. Diving as natural behavior of animals goes here, as well as diving in decompression experiments with humans or animals.Equipment Design: Methods of creating machines and devices.Upper Extremity: The region of the upper limb in animals, extending from the deltoid region to the HAND, and including the ARM; AXILLA; and SHOULDER.Copyright: It is a form of protection provided by law. In the United States this protection is granted to authors of original works of authorship, including literary, dramatic, musical, artistic, and certain other intellectual works. This protection is available to both published and unpublished works. (from Circular of the United States Copyright Office, 6/30/2008)Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Bacteriology: The study of the structure, growth, function, genetics, and reproduction of bacteria, and BACTERIAL INFECTIONS.Publications: Copies of a work or document distributed to the public by sale, rental, lease, or lending. (From ALA Glossary of Library and Information Science, 1983, p181)Publishing: "The business or profession of the commercial production and issuance of literature" (Webster's 3d). It includes the publisher, publication processes, editing and editors. Production may be by conventional printing methods or by electronic publishing.Internet: A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.Editorial Policies: The guidelines and policy statements set forth by the editor(s) or editorial board of a publication.BelgiumGift Giving: The bestowing of tangible or intangible benefits, voluntarily and usually without expectation of anything in return. However, gift giving may be motivated by feelings of ALTRUISM or gratitude, by a sense of obligation, or by the hope of receiving something in return.Gambling: An activity distinguished primarily by an element of risk in trying to obtain a desired goal, e.g., playing a game of chance for money.Social Security: Government sponsored social insurance programs.Insurance, Disability: Insurance designed to compensate persons who lose wages because of illness or injury; insurance providing periodic payments that partially replace lost wages, salary, or other income when the insured is unable to work because of illness, injury, or disease. Individual and group disability insurance are two types of such coverage. (From Facts on File Dictionary of Health Care Management, 1988, p207)Postal Service: The functions and activities carried out by the U.S. Postal Service, foreign postal services, and private postal services such as Federal Express.Health Education: Education that increases the awareness and favorably influences the attitudes and knowledge relating to the improvement of health on a personal or community basis.
  • Altering gait biomechanics is generally done in the fields of prosthetics and rehabilitation, however the perception of gait is often neglected. (frontiersin.org)
  • Previous research has shown that at a self-selected pace, biomechanics variables are very repeatable in gait studies (1-4). (resna.org)
  • Using the calculated pressure output of the IC engine, the pulley system was optimized to best match the ankle moment of a healthy human gait, which was obtained from David Winter's Biomechanics and Motor Control of Human Movement . (jyi.org)
  • Gait analysis is one of the real success stories of biomechanics. (nexgenergo.com)
  • Ehsan's work appeared in several journals including Ergonomics, Journal of Biomechanics, Journal of Electromyography and Kinesiology, International Journal of Human Factors Modelling and Simulation, Journal of Engineering in Medicine, Journal of Research in Rehabilitation Sciences, PLoS ONE, and Safety Science. (rit.edu)
  • Under the leadership of Philippe Malcolm, Ph.D., assistant professor of Biomechanics at the University of Nebraska at Omaha (UNO), graduate student Arash Mohammadzadeh Gonabadi within UNO's Center for Research in Human Movement Variability (MOVCENTR) tested several methods of estimating fluctuations in energy cost within the gait cycle. (unomaha.edu)
  • Dingwell JB, Davis BL, Frazier DM (1996) Use of an instrumented treadmill for real-time gait symmetry evaluation and feedback in normal and trans-tibial amputee subjects. (springer.com)
  • The stop motion parameters are derived from the aspect of real-time gait planning in Section II. (sportdocbox.com)
  • A collaboration between University of Virginia engineers, clinicians, and the school's Institute of Aging, has teamed up with AFrame Digital , a company building mobile sensors and networks, to create a large scale real-time gait monitoring system. (medgadget.com)
  • Statistical analysis was used to quantify the effects of BWU on gait parameters. (springer.com)
  • It was seen that due to the increase in BWU level, joint moments, muscle activity, energy cost of walking and ground reaction forces (GRF) showed higher reduction compared to gait spatio-temporal and joint kinematic parameters. (springer.com)
  • The influence of BWU on kinematic and spatio-temporal gait parameters appeared to be limited up to 30% unloading. (springer.com)
  • BWU showed stronger influence on the kinetic characteristics of gait than on the spatio-temporal parameters and the kinematic characteristics. (springer.com)
  • The results also show that the parameters of a pathologically or uncanny perceived gait can be beneficially altered by increasing other independent parameters, in some sense masking the initial pathology. (frontiersin.org)
  • Simulated gait models allow for consistency and precision of the altered gait parameters. (frontiersin.org)
  • Błażkiewicz M, Wiszomirska I, Wit A (2014) Comparison of four methods of calculating the symmetry of spatial-temporal parameters of gait. (springer.com)
  • Cabral S et al (2017b) The impact of the biomechanical parameters on the intersession agreement and reliability of global gait symmetry indices. (springer.com)
  • Evidence of this improvement was obtained with the GaitMat II system for measuring numerous gait parameters. (jaoa.org)
  • In this paradigm, wearable actuators can reduce mass/inertia parameters in body energetics to dynamically offload the weight of a stroke patient who otherwise would be supported by multiple therapists during gait rehabilitation. (utdallas.edu)
  • The dynamic parameters of the robot assisted human gait such as joint angle trajectories, ground contact force (GCF), human limb joint torques and robot induced torques at different levels of BWS were derived. (edu.au)
  • This information shall be quite important while investigating the influence of BWS intonation on neuromuscular parameters of interest during robotic gait training. (edu.au)
  • Using parameters determined in a gait laboratory directed by D. Casey Kerrigan, a professor in the School of Medicine's Department of Physical Medicine and Rehabilitation, Lach has developed sensors that can quantitatively measure the walking patterns that are likely to lead to falls. (medgadget.com)
  • Two video cameras and manual tracking was used to quantify gait parameters. (biomedcentral.com)
  • The investigation was enabled by our previously designed reinforcement learning (RL) supplementary control, which simultaneously tuned 12 control parameters that determined the prosthesis mechanics throughout a gait cycle. (elsevier.com)
  • Della Croce U et al (2005) Human movement analysis using stereophotogrammetry part 4: assessment of anatomical landmark misplacement and its effects on joint kinematics. (springer.com)
  • This innovation in dynamics and control will enable powered orthoses to assist humans in a variety of activities, which cannot be achieved with state-of-art control strategies based on pre-defined, task-specific joint kinematics. (utdallas.edu)
  • Recent advances in non-invasive brain-computer interface (BCI) technologies have shown the feasibility of neural decoding for both users' gait intent and continuous kinematics. (nature.com)
  • However, traditional gait analysis is almost exclusively about kinematics. (nexgenergo.com)
  • With advances in robotic prostheses, rese-archers attempt to improve amputee's gait performance (e.g., gait symmetry) beyond restoring normative knee kinematics/kinetics. (elsevier.com)
  • Deluzio KJ, Astephen JL (2007) Biomechanical features of gait waveform data associated with knee osteoarthritis: an application of principal component analysis. (springer.com)
  • Accordingly, the device is capable of normalizing or augmenting human biomechanical function, responsive to a wearer's activity, regardless of speed and terrain, and can be used, for example, as a knee orthosis, prosthesis, or exoskeleton. (google.de)
  • This is the most advanced algorithm that has been created for the prediction of gait and that is based on a true biomechanical model. (uiowa.edu)
  • As a result, humans experience ever increasing interactions with robotic systems on both a professional and personal level. (jyi.org)
  • On the personal level, these robotic systems can be used to assist with physical impairment, amplify normal physical capabilities, and even act as an extension of human abilities for the 35.2 million people suffering from physical functioning disabilities (Dollar & Herr, 2007). (jyi.org)
  • In the present research we have studied the effect of BWS intonation on muscle activities during robotic gait training using dynamic simulations. (edu.au)
  • Two dimensional (2-D) musculoskeletal model of human gait was developed conjointly with another 2-D model of a robotic orthosis capable of actuating hip, knee and ankle joints simultaneously. (edu.au)
  • In current clinical practice the gait restoration with robotic device is an integral part of rehabilitation program. (minervamedica.it)
  • This study aimed to investigate the influence of robotic transfemoral prosthesis mechanics on human wearers' gait symmetry. (elsevier.com)
  • The data analysis showed that changes in robotic knee mechanics led to movement variations in both lower limbs and therefore gait temporal-spatial symmetry measures. (elsevier.com)
  • In order to systematically generate a variety of altered gait dynamics to be rated for impairment and uncanniness by participants, we are using one measured healthy gait (for comparison) and sets of simulated gait models that are mathematically derived. (frontiersin.org)
  • In this self-guided exploration of the dynamics of physiologic time series, we encourage you to focus on the analysis of actual time series derived from human subjects (1-16). (mit.edu)
  • However, the dynamics of cortical involvement in human upright walking with a closed-loop BCI has not been investigated. (nature.com)
  • However, to our best knowledge, the dynamics of cortical involvement in human upright walking with a closed-loop BCI has not been investigated. (nature.com)
  • In order to obtain a feasible set of muscle activities during subsequent gait cycles, an inverse dynamics algorithm along with a quadratic minimization algorithm was implemented. (edu.au)
  • Fractal dynamics of human gait: stability of long-range correlations in stride interval fluctuations. (physionet.org)
  • Altered fractal dynamics of gait: reduced stride interval correlations with aging and Huntington's disease. (physionet.org)
  • This naming originated from the field of multi-body dynamics but there is a predictive aspect to it because our method includes the human aspects of naturalistic motion and predictive behavior. (uiowa.edu)
  • T he abdominal muscles, specifically the rectus abdominis, are often trained in an inefficient manner that may not actually improve their mechanical ability to function as a component of an integrated system responsible for producing and controlling human movement. (acefitness.org)
  • The traditional approach of understanding human anatomy for the purpose of designing exercise programs is based on the assumption that muscles function independently to perform separate, isolated actions. (acefitness.org)
  • A more appropriate way to describe anatomy as it relates to human movement is to recognize that all muscles work together to accomplish a specific task. (acefitness.org)
  • While prosthetics have been made lighter and more flexible, they fail to mimic the power generated from human muscles in able-bodied individuals. (utdallas.edu)
  • The gait cycle is a complicated phenomenon with lots of joints and muscles working together," Gregg said. (utdallas.edu)
  • An increase in leg length since the evolution of bipedalism changed how leg muscles functioned in upright gait. (wikipedia.org)
  • In humans the "push" for walking comes from the leg muscles acting at the ankle. (wikipedia.org)
  • This permits humans to lock their knees and stand up straight for long periods of time without much effort from the muscles. (wikipedia.org)
  • The gluteus maximum became a major role in walking and is one of the largest muscles in humans. (wikipedia.org)
  • For example, if a training frequency of 25 hertz is selected, 25 cycles of contraction in flexor and extensor muscles occur per second. (galileo-training.com)
  • There are an awful lot of ways that you can activate muscles in a gait cycle, and the vast majority of them lead to an animal falling over very quickly," Sellers said. (nationalgeographic.com)
  • This study aimed to infer the functional roles of ostrich pelvic limb muscles during gait. (royalsocietypublishing.org)
  • Work and force estimates show that ostrich gaits are partially hip-driven with the bi-articular hip-knee muscles driving stance mechanics. (royalsocietypublishing.org)
  • As a result, little can be intuitively inferred about specific functional roles that individual pelvic limb muscles perform in ostriches (or many other birds) during gait. (royalsocietypublishing.org)
  • A novel mechanism is presented by which human ankle muscles use their elastic tendons to contribute mechanical work and produce acceleration during walking gait. (biologists.org)
  • Active muscles from mice with a small titin deletion exhibit large deficits in net negative work, suggesting that titin contributes to energy storage and dissipation during stretch-shortening cycles. (biologists.org)
  • Therefore, the present study evaluated the ground reaction force (GRF) during a dynamic task, gait initiation, following ice application to different structures - sole of the foot, ankle and triceps surae (commonly known as the calf muscles). (scielo.br)
  • achieve 114 W kg −1 hindlimb muscle mass-specific power for a complete gait cycle (although this is probably an overestimate as it ignores power from trunk muscles). (royalsocietypublishing.org)
  • To understand how muscles contribute to propulsion (i.e., forward acceleration of the mass center) and support (i.e., upward acceleration of the mass center) during running we developed a three- dimensional muscle-actuated simulation of the running gait cycle. (simtk.org)
  • Coordination of gait involves a complex interaction between proprioceptive receptors, stretch receptors in muscles, spinal cord, cerebellum, motor cortex and vision. (biomedcentral.com)
  • As a result, they showed a significant enhancement of corticospinal excitability in the left tibialis anterior muscles (leg flexors) immediately and 30 min after SOS+gait, but neither in the left gastrocnemius muscles (leg extensors), nor after Sham+gait. (jnss.org)
  • In addition, they showed a significant prolongation of the cortical silent period in the left and right gastrocnemius muscles after SOS+gait, but nor after Sham+gait. (jnss.org)
  • At high frequencies muscles do not have enough time for a complete relaxation between two cycles. (galileo-training.com)
  • We therefore hypothesised that CKCS diagnosed with CM or CM with SM, would have significantly increased a) variation of the spatio-temporal gait characteristics (stride length and duration of step cycle and stance) and b) wider base of support with an increased distance between pelvic and thoracic paws during walk. (biomedcentral.com)
  • While body weight support (BWS) intonation is vital during conventional gait training of neurologically challenged subjects, it is important to evaluate its effect during robot assisted gait training. (edu.au)
  • Effect of BWS variation during robot assisted gait on muscle activities was studied by developing dynamic simulation. (edu.au)
  • It is expected that the proposed dynamic simulation approach will provide important inferences and information about the muscle function variations consequent upon a change in BWS during robot assisted gait. (edu.au)
  • Often, amputees experience a loss of terrain adaptability as well as stability, leaving the amputee with a severely altered gait. (umass.edu)
  • Yet, little is known about how the prosthesis mechanics/control influence wearer-prosthesis' gait performance, such as gait symmetry, stability, etc. (elsevier.com)
  • Joint capsules, ligaments, and capsule bone and the effects of tumours many organs have consider - able changes in length and curvature of the human knee joints is the taking of food and water retention blood glucose level during gait also increases joint stability may partially explain the mechanisms that control finger movements. (goodsamatlanta.org)
  • This paper presents the active exoskeleton called pneumatic interactive gait rehabilitation orthosis (P.I.G.R.O.), developed by the authors. (intechopen.com)
  • Today, gait laboratories are used routinely for investigation of a variety of conditions, for diagnostics and planning of surgery, and for rehabilitation. (nexgenergo.com)
  • The appropriate application of these exercise techniques will both advance and enhance the preparation of the athlete for the appropriate period of time when the running gait cycle is initiated as a component of the rehabilitation protocol. (speedendurance.com)
  • Using recordings from muscle sensors and an advanced 3D camera system, combined with software developed by the NIH National Center for Simulation in Rehabilitation Research and Stanford University, UNO researchers compared different equations for estimating fluctuations in oxygen cost within the gait cycle. (unomaha.edu)
  • The present invention relates generally to orthotic foot appliances, and more particularly to an improved orthotic device for treatment of gait cycle disorders which frequently develop in patients suffering from diabetes, rheumatoid arthritis and certain other conditions. (google.com)
  • It might be a promising method for a treatment of gait disturbance by supraspinal neuronal damages such as stroke. (jnss.org)
  • Taken together with previous studies, the findings suggest the availability of visual information about the terrain near a particular step is most essential during the latter half of the preceding step, which constitutes a critical control phase in the bipedal gait cycle. (arvojournals.org)
  • One of the features that separate humans from all other primates is the habitual use of a bipedal gait. (biologists.org)
  • Briem K, Snyder-Mackler L (2009) Proximal gait adaptations in medial knee OA. (springer.com)
  • Experimental data, in conjunction with anatomical data on early human ancestors, show clearly that a relatively stiff modern human gait and associated physiological and anatomical adaptations are not primitive retentions from a primate ancestor, but are instead recently acquired characters of our genus. (biologists.org)
  • It may be possible to use this flexibility to incorporate specific adaptations to gait and stance to improve locomotor control, even after severe central nervous system damage. (wingsforlife.com)
  • During the gait cycle, the breast followed a figure-of-eight pattern with four movement phases. (humankinetics.com)
  • The gait cycle is divided into two main phases-stance and swing, each consisting of numerous subphases. (jaoa.org)
  • This page presents information about the different phases of the gait cycle, important functions of the foot while walking and gait analysis which is a key skill for physiotherapists. (physio-pedia.com)
  • Briefly described, the running gait cycle is comprised of three phases. (speedendurance.com)
  • Then, the gait phases were obtained through the gait phase detection algorithm (GPDA), which provides the rules that determine calculations for STTTA. (mdpi.com)
  • Experimental results show that the proposed method can be used to detect gait phases in real time and obtain high reliability when compared with the previous methods in the literature. (mdpi.com)
  • In this study, low-cost sensors have been used to collect gait signals and identify the features responsible for differentiating the gait phases (swing/stance). (amrita.edu)
  • Balachandran A., Nutakki C., Sandeep Bodda, Dr. Bipin G. Nair, and Dr. Shyam Diwakar, "Experimental Recording and Assessing Gait Phases Using Mobile Phone Sensors and EEG", Proceedings of the Seventh International Conference on Advances in Computing, Communications and Informatics (ICACCI-2018). (amrita.edu)
  • However, different phases of the gait cycle contribute differently to the average oxygen consumption, even if someone walks at a constant pace on a flat surface. (unomaha.edu)
  • These simulations can help us understand which phases of a person's gait cycle contribute to increased oxygen consumption in patients" Malcolm said. (unomaha.edu)
  • Behaviour towards potential mating partners changes during different phases of the menstrual cycle. (wikipedia.org)
  • The intensity of mate guarding differs across the phases of the cycle, with increased mate guarding occurring when woman are fertile, in order to keep other males away. (wikipedia.org)
  • Mixed research has been found regarding body symmetry preferences throughout different phases of the cycle. (wikipedia.org)
  • All these developments permitted that amputees gait got closer to the natural human gait pattern. (dissertation.com)
  • This provides the capability to absorb energy during the amputees gait cycle in a controlled manner, effectively allowing the passive dynamic response to be greatly altered continuously by leveraging a small energy source. (umass.edu)
  • A virtual simulation of an amputee gait cycle with the adaptive semi-active ankle design revealed the potential to replicate adaptive abilities of the human ankle. (umass.edu)
  • The project will involve A) the development of a mechanical model of the human+exoskeleton in Opensim, the optimization of the new model and B) the development of bio-inspired control algorithm based on the strategy developed and described in https://www.frontiersin.org/articles/10.3389/fnbot.2017.00030, https://ieeexplore.ieee.org/abstract/document/7523694/, https://link.springer.com/chapter/10.1007/978-3-319-46532-6_27. (epfl.ch)
  • Based on this premise, research has been conducted to confirm the existence of gait asymmetry in various clinical populations and to assess the efficacy and feasibility of gait retraining programs to restore gait symmetry. (springer.com)
  • Cabral S, Fernandes R et al (2016a) Inter-session agreement and reliability of the global gait asymmetry index in healthy adults. (springer.com)
  • Cabral S, Resende RA et al (2016b) A global gait asymmetry index. (springer.com)
  • Step time and step length asymmetries less than 5%, small knee location differences, and gait cadence changes of 25% do not result in a change in perception. (frontiersin.org)
  • By using a passive dynamic walker (PDW) computational model, we are able to specifically examine changes in perception that arise from deviations in gait speed, knee location, spatial and temporal symmetry, foot roll-over shapes, and knee damping. (frontiersin.org)
  • The increased flexion of the limb at the knee as humans change from walking to running can be regarded as a attempt to shorten the length of the pendulum, so allowing faster swings forward. (encyclopedia.com)
  • The evolution of human bipedalism, which began in primates about four million years ago, or as early as seven million years ago with Sahelanthropus, has led to morphological alterations to the human skeleton including changes to the arrangement and size of the bones of the foot, hip size and shape, knee size, leg length, and the shape and orientation of the vertebral column. (wikipedia.org)
  • Human knee joints are enlarged for the same reason as the hip - to better support an increased amount of body weight. (wikipedia.org)
  • The degree of knee extension (the angle between the thigh and shank in a walking cycle) has decreased. (wikipedia.org)
  • The changing pattern of the knee joint angle of humans shows a small extension peak, called the "double knee action," in the midstance phase. (wikipedia.org)
  • Apes have vertical femurs, while humans have femurs that are slightly angled medially from the hip to the knee. (wikipedia.org)
  • Dampers in prosthetic knee joints are able to mimic eccentric muscle work during the gait cycle. (dissertation.com)
  • Patients visiting their family physician because of gait disturbances complain most often of pain, joint stiffness, numbness, weakness, and an abnormal pattern of gait ( 7 ). (aerzteblatt.de)
  • and iii) the abnormal gait cycle which develops from diabetes, rheumatoid arthritis or other conditions which impair proper transfer of weight onto the forefoot when walking, and which is corrected by the present invention. (google.com)
  • A comparison of muscle energy models for simulating human walking in three dimensions. (springer.com)
  • This study aimed to assess the trajectory of breast displacement in 3 dimensions during walking and running gait, as this may improve bra design and has yet to be reported. (humankinetics.com)
  • 2) To study whether the effects of BWS differ between treadmill and overground walking and (3) To investigate if modulated BWU influences gait characteristics less than unmodulated BWU. (springer.com)
  • 5 gait characteristics presented different behavior in response to BWU for overground and treadmill walking. (springer.com)
  • Remaining 21 gait characteristics showed similar behavior but different magnitude of change for overground and treadmill walking. (springer.com)
  • Examples of the latter include hand walking and specialized gaits used in martial arts. (wikipedia.org)
  • This means that, as a mechanical structure, the human body functions most efficiently when walking or running across the ground. (acefitness.org)
  • Human walking and running varies only in speed. (encyclopedia.com)
  • Control engineers view the human gait cycle through the lens of time - the interval at which each movement in the walking cycle needs to occur. (utdallas.edu)
  • Gregg, an assistant professor of bioengineering and mechanical engineering , proposed a new way to view and study the process of human walking: measuring a single variable that represents the motion of the body. (utdallas.edu)
  • Human walking is about 75% less costly than both quadrupedal and bipedal walking in chimpanzees. (wikipedia.org)
  • Humans save more energy than quadrupeds when walking but not when running. (wikipedia.org)
  • Human running is 75% less efficient than human walking. (wikipedia.org)
  • A longer leg allows the use of the natural swing of the limb so that, when walking, humans do not need to use muscle to swing the other leg forward for the next step. (wikipedia.org)
  • Also, because bipedal walking requires humans to balance on a relatively unstable ball and socket joint, the placement of the vertebral column closer to the hip joint allows humans to invest less muscular effort in balancing. (wikipedia.org)
  • Gait is a person's manner of walking and gait recognition refers to the identification and verification of an individual based on gait. (igi-global.com)
  • Examples include joint articulation for people suffering from disabilities, increased load carrying capacity and walking distance for humans, and gait training. (jyi.org)
  • The main goal of this research is to help people with disabilities regain natural walking ability by replicating normal walking gait through the use of an active ankle-foot orthosis (AAFO). (jyi.org)
  • Backdrivability may not be necessary for patients who cannot contribute to their walking gait, e.g., patients with spinal cord injuries. (utdallas.edu)
  • Studies of walking demonstrate that humans are capable of rapidly using visual information during the swing phase to improve the accuracy of stepping. (arvojournals.org)
  • This study aims to investigate the changes of cortical involvement in human treadmill walking with and without BCI control of a walking avatar. (nature.com)
  • We hypothesized that the closed-loop EEG-based BCI-VR system enhances cortical involvement in human treadmill walking, triggers cortical networks involved in error monitoring and motor learning, and increases voluntary control of human gait. (nature.com)
  • Existing gait data were combined with a newly developed musculoskeletal model to generate simulations of ostrich walking and running that predict muscle excitations, force and mechanical work. (royalsocietypublishing.org)
  • Bipedal walking is an important characteristic of humans. (physio-pedia.com)
  • These studies show that relatively compliant walking gaits allow primates to achieve fast walking speeds using long strides, low stride frequencies, relatively low peak vertical forces, and relatively high impact shock attenuation ratios. (biologists.org)
  • Thus, it might seem reasonable to argue that the evolution of human bipedalism was a logical progression from a relatively stiff quadrupedal walking style to our modern gait. (biologists.org)
  • From the practical point of view, it is necessary for humanoid robot to have the capability of walking where humans can. (sportdocbox.com)
  • In this method, because the walking cycle is constant, humanoid robots will be possible to stop by one step only in some cases especially slow walking. (sportdocbox.com)
  • This paper presents a novel methodology for detecting the gait phase of human walking on level ground. (mdpi.com)
  • However, the previous methods for gait phase detection demonstrate no adaptability to different people and different walking speeds. (mdpi.com)
  • Therefore, this paper presents a self-tuning triple threshold algorithm (STTTA) that calculates adjustable thresholds to adapt to human walking. (mdpi.com)
  • ORCID: 0000-0003-4759-4216 2015, 'A forward dynamic modelling investigation of cause-and-effect relationships in single support phase of human walking' , Computational and Mathematical Methods in Medicine, 2015 , pp. 1-9. (salford.ac.uk)
  • Humanoid and walking robots have been widely developed and their use in human environments is not far out of reach. (techylib.com)
  • We also performed a walking cycle investigation of a person walking casually down the same slope used for the walker experiments, calculated the average time intervals within one cycle and made a comparison between the test subject and our walker. (techylib.com)
  • The most common goals pursued in machine walking besides the development of humanoid robots are related to human welfare and ability augmentation. (techylib.com)
  • Human welfare applications may consist of partial or complete prosthetic solutions such as Victhom's bionic leg or walking chairs as is the case with Waseda University's WL-16 for providing the ability to climb stairs and go over obstacles to the disabled. (techylib.com)
  • The project will first involve mechanical development of the device in OpenSim followed by the training of a walking controller involving the human + the exoskeleton in transparent mode (0 torque output). (epfl.ch)
  • This symmetry is usually compromised in pathological gait due to the presence of pain, or as a consequence of an underlying impairment. (springer.com)
  • The diagnostic assessment of gait disturbances in old age requires a clear distinction of pathological findings from the normal, physiological changes of aging. (aerzteblatt.de)
  • This review has shown that BWU influences all gait characteristics, albeit with important differences between the kinematic, spatio-temporal and kinetic characteristics. (springer.com)
  • Multi-variable studies provide several important characteristics of the human ankle, unavailable from single DOF studies, which have mostly been in the sagittal plane. (mit.edu)
  • C. Nandini of the Vidya Vikas Institute of Engineering & Technology and C.N. Ravi Kumar of the S.J. College of Engineering in Mysore, India, explain that human gait typifies the motion characteristics of an individual. (bio-medicine.org)
  • Sun C, Li Y, Kuang J, Ji C, Wu J. The Effect of Ash Cleaning Cycles on Thermal Characteristics of Moxibustion Therapy. (asme.org)
  • Currently, monitoring gait-related problems typically requires patients to visit a health care facility, where they walk on a pressure sensitive treadmill and are monitored by video cameras. (medgadget.com)
  • He then moved to the U.S., and completed his second M.S. degree and his Ph.D. degree in Industrial and Systems Engineering at Virginia Tech. Prior to coming to RIT, he was a postdoctoral researcher at Virginia Tech, where he conducted research on exoskeletons, human gait and muscle fatigue, textile sensors, and head-worn display technologies. (rit.edu)
  • Knowing which phase in someone's gait cycle causes them problems could allow for the developing exercise therapies that target the most costly phase or devices such as exoskeletons that assist right when it is most needed. (unomaha.edu)
  • Collins TD et al (2009) A six degrees-of-freedom marker set for gait analysis: repeatability and comparison with a modified Helen Hayes set. (springer.com)
  • This research aimed to assess the repeatability of results obtained when analysing gait by means of a system designed for objective gait analysis in a single laboratory setting by a single examiner within-session and between-sessions. (edu.pl)
  • Repeatability of a new protocol for gait analysis in adult subjects. (edu.pl)
  • Towards Continuous Authentication Based on Gait Using Wearable Motion Recording Sensors. (igi-global.com)
  • Lach's sensors, now about the size of a digital watch face, can measure and transmit data on a wide range of human motion, including linear acceleration, or how fast patients move in a straight path, and rotational rate, which together provide six degrees of freedom motion capture. (medgadget.com)
  • The sensors are now in their third generation of development and, thanks to the living laboratory model, they will now evolve with faster prototyping cycles that use continuous feedback from the patients. (medgadget.com)
  • In order to accurately replicate a healthy human gait, the AAFO device had to accurately reproduce the moment applied to the ankle during the gait cycle. (jyi.org)
  • To evaluate the effects of cryotherapy applied to the calf, ankle and sole of the foot in healthy young adults on ground reaction forces during gait initiation. (scielo.br)
  • These results suggest that although caution is necessary when performing activities that require good gait control, the application of ice to the ankle, sole of the foot or calf in 30-minute intervals may be safe even preceding such activities. (scielo.br)
  • The human ankle is a biomechanically complex joint consisting of three bones with non-intersecting anatomical axes, and its motions under normal motor control and function are predominantly in multiple degrees-of-freedom (DOF). (mit.edu)
  • The models are kinematically driven at the ankle and the metatarsal joints, and simulated horizontal and vertical ground reaction forces as well as center of pressure location are compared against the measured quantities within a complete human gait cycle. (asme.org)
  • Detection of Gait Perturbations Based on Proprioceptive Information. (hindawi.com)
  • Gait analysis has become an attractive quantitative and non-invasive mechanism that can aid early detection and monitoring of the response of Parkinson's disease sufferers to management schedules. (edu.au)
  • The evaluation of elderly patients whose chief complaint is a gait disturbance should be directed toward the identification of specific deficits. (aerzteblatt.de)
  • Among the patients of a hospital department of acute neurology, old age is the most important risk factor for a gait disturbance ( 1 ). (aerzteblatt.de)
  • some, like Parkinson s disease, have well-established treatments according to the principles of evidence-based medicine, while for others, like -cerebrovascular gait disturbance, too little evidence is available to support any particular form of treatment. (aerzteblatt.de)
  • The learning goals for readers of this article are to know the different methods used in the diagnostic assessment of gait disturbances, to be able to identify the factors that contribute to the (multifactorial) gait disturbances of old age, and to be acquainted with the effective treatments that are available for certain types of gait disturbance. (aerzteblatt.de)
  • In such environment, not only unknown disturbance may hit humanoid robots, but also humanoid robots may hurt to humans or objects (Fig.1). (sportdocbox.com)
  • A symmetric gait pattern for humans is characterized by the almost identical behavior of bilateral limbs during a gait cycle. (springer.com)
  • It also reveals that bacteria use sensory mechanisms to coordinate the dynamic motion of their motility machineries, in a striking analogy to the way higher organisms, including humans, move their limbs to generate displacement. (phys.org)
  • 4 The first two determinants of the gait cycle-pelvic rotation and pelvic tilt-involve the pelvis, including the right and left innominate bones and the sacrum. (jaoa.org)
  • It is important also in initiating the major gait determinant of pelvic rotation. (nih.gov)
  • Unlike other training platforms with a vertical (up and down) movement, the tilting movement of Galileo Training simulates human gait in a physiological way. (galileo-training.com)
  • After the contraction the remaining time is sufficient for the muscle to completely relax again before the next contraction because the average time for a complete physiological contraction-/relaxation cycle is only about 50 milliseconds. (galileo-training.com)
  • Biometrics is commonly associated retinal scans, iris recognition and DNA databases, but researchers in India are working on another form of biometrics that could allow law enforcement agencies and airport security to recognize suspects based on the way they were, their characteristic gait. (bio-medicine.org)
  • Even snails have their own characteristic gaits. (maths.org)
  • Therefore, we investigated the potential of Schwann-like cells differentiated from human tonsil-derived stem cells (T-MSCs) for use in neuromuscular regeneration in trembler-J (Tr-J) mice, a model of CMT1A. (mdpi.com)
  • The Korvit stimulator was used through two different modes, namely an organized ("gait like") sequence and a destructured (chaotic) pattern. (frontiersin.org)
  • In some individuals, the gait pattern is largely unchanged - the leg position and foot position are identical in barefoot and shoe running - but the wedge shape of the padding moving the point of impact back from the forefoot to the midfoot. (wikipedia.org)
  • The gait cycle is a repetitive pattern involving steps and strides. (physio-pedia.com)
  • Our work shows that in the same manner, bacteria use a sense of touch to sequentially engage molecular motors, generating cycles of pili extension and retraction that result in a walk pattern. (phys.org)
  • Design and development of a piezoelectric polyvinylidene fluoride (PVDF) thin film based nasal sensor to monitor human respiration pattern (RP) from each nostril simultaneously is presented in this paper. (semanticscholar.org)
  • The Achilles tendon allows for powerful lowering of the foot and is thus crucial for the entire gait pattern with normal pushing and rolling of the foot. (atos-clinics.com)
  • This description provides clues about the networks of nerve cells that control the gaits, known as central pattern generators . (maths.org)
  • For example in the walk, each leg hits the ground one quarter of the gait cycle after the previous leg, so the central pattern generator must have a symmetry that naturally leads to these quarter period phase shifts . (maths.org)
  • A clinically oriented classification of gait disorders is proposed, which, on the basis of the characterization of gait and the accompanying clinical findings, enables identification of the etiological factors and points the way to rational therapy. (aerzteblatt.de)
  • During the swing phase of the gait cycle, the pelvis rotates forward on the side of the swinging leg about a transverse plane, with the hip joint of the stance leg serving as the axis of rotation. (jaoa.org)
  • A controller estimates terrain slope and modulates the augmentation torque and the impedance according to a phase of the gait cycle. (google.de)
  • 6 . The method of claim 1 , wherein if the phase of the gait cycle is determined to be one of early stance and mid stance and the estimated slope is substantially zero, the impedance is modulated such that contribution of the linear spring component to the modulated impedance is greater than contribution of the damping component. (google.de)
  • 7 . The method of claim 1 , wherein if the phase of the gait cycle is determined to be one of early stance and mid stance and the estimated slope is negative, the impedance is modulated such that contribution of the damping component is increased substantially compared to contribution thereof if slope is estimated to be substantially zero. (google.de)
  • if the phase of the gait cycle is determined to be one of early stance and mid stance and the estimated slope is positive, providing the non-conservative propulsive torque such that the modulated augmentation torque is greater than the modulated augmentation torque applied if the slope is estimated to be substantially zero. (google.de)
  • 10 . The method of claim 1 , wherein if the phase of the gait cycle is determined to be late stance, the augmentation torque is modulated to correspond to a reflex torque that is related to the estimated slope. (google.de)
  • 11 . The method of claim 1 further comprising the step of modeling, during a swing phase of the gait cycle, a joint equilibrium as a second-order response to a joint-position goal to be achieved prior to a next phase of the gait cycle. (google.de)
  • 12 . The method of claim 11 further comprising the step of determining if the joint is substantially fully flexed, during a swing phase of the gait cycle, wherein modulating comprises adjusting both the augmentation torque and the impedance to be substantially zero, if the joint is determined to be substantially fully flexed. (google.de)
  • Our research attempts to leverage these breakthroughs to transform prosthetic and orthotic technology with a paradigm shift in how the human gait cycle is viewed: as a function of a phase variable rather than time. (utdallas.edu)
  • The goal of this study was to investigate the locus of energy absorption during the impact phase of the running cycle. (nih.gov)
  • Gluteus medius with its three parts and phasic functions is responsible for the stabilisation of the hip joint in the initial phase of the gait cycle. (nih.gov)
  • Gluteus minimus functions as a primary hip stabiliser during the mid- and late phase of the gait cycle. (nih.gov)
  • Measurements of oxygen consumption using a respiratory mask are not fast enough to detect which phase of the cycle requires the most energy to complete. (unomaha.edu)
  • During their most fertile phase of the menstrual cycle, female's voices are rated as significantly more attractive. (wikipedia.org)
  • During their most fertile phase of the menstrual cycle women show preference for the odour of symmetrical men. (wikipedia.org)
  • A preference is also shown for self-resembling faces and apparent health in faces during the luteal phase of the cycle. (wikipedia.org)
  • Preferences for body features change during the fertile phase of the cycle. (wikipedia.org)
  • Fifty-six percent of overall breast movement was vertical, suggesting that 3-D assessment and the elimination of trunk movement in 6 degrees of freedom are essential to accurately report breast displacement during the gait cycle. (humankinetics.com)
  • 7. Assi A., Ghanem I., Lavaste F., Skalli W., Gait analysis in children and uncertainty assessment for Davis protocol and Gillette Gait Index. (edu.pl)
  • Consistent across all the subjects, inter-limb AP impulse measurements explained gait symmetry: the stance time symmetry was significantly correlated with the net inter-limb AP impulse, and the step length symmetry was significantly correlated with braking and propulsive impulse symmetry. (elsevier.com)
  • Rather, achieving gait symmetry may require coordination between the wearer's motor control of the intact limb and adaptive control of the prosthetic joints. (elsevier.com)
  • Two classes of ``real world'' physiologic signals are available here, one related to human gait, and the other related to human heartbeat. (mit.edu)
  • The human central nervous system processes mechanosensory signals to sequentially engage motor components, thus triggering muscle contraction and resulting in gait," explains Talà. (phys.org)
  • Experiments have been conducted using signals of vertical ground reaction force (GRF) from subjects with Parkinson's disease from the publicly available gait database (physionet.org). (edu.au)
  • The Emerald technology uses the reflection of radio signals to measure human activity such as gait, breathing and sleep quality. (businesswire.com)
  • Recent developments include the Emerald system, a modified WIFI router capable of reading the radio signals that bounce off people's bodies and using them to measure human motion and vital signs. (businesswire.com)
  • This study evaluated the gait initiation forces, maximum propulsion, braking forces and impulses of 21 women volunteers through a force platform, which provided maximum and minimum ground reaction force values. (scielo.br)
  • These three regions were chosen for their predominance of skin, joint and muscle receptors, respectively, which might differentially influence gait initiation following cryotherapy. (scielo.br)
  • Additionally, we also investigated EEG and gait correlates by identifying the brain regions that are active during movement initiation and during stance and swing (a progressive gait) using electroencephalography. (amrita.edu)
  • The aim of this functional Magnetic Resonance Imaging (fMRI) study was to analyze interactions between two paradigms to investigate the brain gait control network: (1) mental imagery of gait, and (2) passive mechanical stimulation of the plantar surface of the foot with the Korvit boots. (frontiersin.org)
  • At a stimulation frequency of 15 Hertz, for example, the time between two reflex cycles is about 67 milliseconds. (galileo-training.com)
  • From early medical studies it appears that there are twenty-four different components to human gait, and that if all the measurements are considered, gait is unique (BenAbdelkader, et al. (igi-global.com)
  • When sufficient reliability of the gait model has been obtained, computations may replace more labor-intensive EMG measurements, and it is possible to use the technology to evaluate joint forces, which are very difficult to measure scientifically and impossible to measure in a clinical setting. (nexgenergo.com)
  • 1. McGinley J.L., Baker R., Wolfe R., Morris M.E., The reliability of three-dimensional kinematic gait measurements: A systematic review. (edu.pl)
  • The paradigms generated statistically common areas of activity, notably bilateral SMA-proper and right pre-SMA, highlighting the potential key role of SMA in gait control. (frontiersin.org)
  • We borrowed from robot control theory to create a simple, effective new way to analyze the human gait cycle," said Dr. Robert Gregg , a faculty member in the Erik Jonsson School of Engineering and Computer Science and lead author of the paper. (utdallas.edu)
  • Emerging powered prostheses and orthoses independently control different joints and time periods of the gait cycle, which 1) requires significant time and effort to tune each control model to the individual and 2) risks falls when environmental perturbations trigger the wrong control model at the wrong time. (utdallas.edu)
  • This control paradigm depends on pre-defined reference trajectories, which can be difficult to adjust between different locomotor tasks and human subjects. (utdallas.edu)
  • A paradigm shift from task-specific, kinematic control approaches to task-invariant, energetic control approaches is needed for wearable robots to assist their human users across activities. (utdallas.edu)
  • Therefore, we are investigating a novel control methodology for shaping the potential energy or total energy of the human body with wearable actuators. (utdallas.edu)
  • Numerous studies in motor learning and neurorehabilitation training use robots to guide the patient in specific movements, while the clinicians analyze the behavior of the human motor control using the results obtained. (intechopen.com)
  • Additionally, the presence of low γ modulations in the ACC and Superior Temporal Gyrus may associate with increases of voluntary control of human gait. (nature.com)
  • The RL control design facilitated safe explorations of prosthesis mechanics with the human in the loop. (elsevier.com)
  • The results suggest that it is possible to personalize transfemoral prosthesis control for improved temporal-spatial gait symmetry. (elsevier.com)
  • Human spinal locomotor control is based on flexibly organized burst generators. (wingsforlife.com)
  • A powered device augments a joint function of a human during a gait cycle using a powered actuator that supplies an augmentation torque, an impedance, or both to a joint. (google.de)
  • Because of their rotated-under-the-body legs and upright stances, the forces in the human and dog point "through" the hip or shoulder of each leg, minimizing the torque at each joint. (oricomtech.com)
  • Human gait is defined as bipedal , biphasic forward propulsion of center of gravity of the human body, in which there are alternate sinuous movements of different segments of the body with least expenditure of energy. (wikipedia.org)
  • Yet, because of the paucity of the fossil record, the fragmentary nature of fossil remains, and the difficulty of inferring behavior from fossils, significant questions remain unanswered concerning the evolution of human bipedalism. (biologists.org)
  • Women in the fertile stages of their menstrual cycle are more attracted to masculine gaits than are nonfertile women, according to a study in the journal Evolution and Human Behavior. (thefreedictionary.com)