Reliability of three dimensional kinematic gait. Medical search. Frequent questions

Accuracy of six DOF joint kinematics during normal and pathological gait: a simulation study. (cdc.gov)
The goal of this study was to compare the accuracy of non-sagittal joint kinematics derived from inverse kinematic models based on shared and independent marker sets. (cdc.gov)
We then used a least squares forward dynamics algorithm to compute the pelvic motion and joint angular trajectories over a gait cycle that were optimally consistent with the measured marker kinematics and ground reactions, while also satisfying the overall equations of motion of the system. (cdc.gov)
During gait, hip kinetics and kinematics were similar in people with and without CLBP. (bmj.com)
2009). Two-dimensional kinematics in gait evaluation of Bardigiano Horse breeding stock. (simi.com)
Participants will also complete a treadmill running protocol where three-dimensional kinematics, plantar pressure distribution and electromyography data will be collected. (biomedcentral.com)
However, the effects of unweighting on gait kinematics remain unclear in patients with hip OA. (researchsquare.com)
Unweighting by the LBPP treadmill decreased pain in the hip OA group but did not drastically alter the gait kinematics compared with that in the control group. (researchsquare.com)
Investigating gait kinematics on LBPP for hip OA can provide useful information for clinicians when they apply LBPP exercises. (researchsquare.com)
However, as a participant's lower limbs are in a waist-high chamber when using an LBPP treadmill, a conventional motion analysis using an optical method may be difficult, especially for the hip joint, limiting what is known about how unweighting affects gait kinematics. (researchsquare.com)
Because of the advances in technology, a wearable-sensor-based three-dimensional (3-D) motion analysis system, which can analyze gait kinematics by seven sensors that consist of triaxial acceleration and gyro sensors, has recently been developed as a tool to analyze gait kinematics [8]. (researchsquare.com)
Hence, we thought that we could calculate gait kinematics in participants with hip OA by this system while walking on an LBPP treadmill. (researchsquare.com)
The analysis of the body center of mass (BCoM) 3D kinematics provides insights on crucial aspects of locomotion, especially in populations with gait impairment such as people with amputation. (mdpi.com)
Leg length and offset differences above 5mm after total hip arthroplasty are associated with altered gait kinematics. (simi.com)

This study, employing robust methodology, hypothesised that there would be a difference in postural control, and spatiotemporal parameters of gait in people with CLBP compared with asymptomatic individuals. (bmj.com)
During gait, no differences were observed between groups for spatiotemporal parameters, maximum, minimum and total ranges of hip movement, or peak hip flexor or extensor moments in the sagittal plane. (bmj.com)
During gait, spatiotemporal parameters were similar in people with and without CLBP. (bmj.com)
These findings provide clinicians and researchers with an indication of the repeatability and sensitivity of the Zebris treadmill system to detect changes in common spatiotemporal gait parameters and vertical ground reaction forces. (biomedcentral.com)
The computed target of measures are spatiotemporal gait parameters including stride length and time, stance phase time, heel-strike and toe-off angle, toe clearance, and inter-stride variation from gait sequences. (plos.org)
Cross-sectional analysis revealed distinct spatiotemporal gait parameter differences reflecting typical Parkinson's disease gait characteristics including short steps, shuffling gait, and postural instability specific for different disease stages and levels of motor impairment. (plos.org)
Lord and colleagues 4 - 6 recently used factor analysis of spatiotemporal inertial measures during walking to reveal 5 relatively independent domains of gait that accounted for 84.6% of variance of performance in both healthy elderly participants and participants with Parkinson disease (PD) in the on-levodopa state: pace, rhythm, variability, asymmetry, and postural control. (highwire.org)
4 However, their analysis was limited to gait spatiotemporal measures of footfalls during straight walking on a GAITRite mat (CIR Systems Inc). We took a similar factor analysis approach to determine functional mobility domains in the ISAW, but body-worn sensors allowed us to add measures of postural sway, step initiation, turning, and trunk and arm motion to examine a broader range of mobility-related measures. (highwire.org)

Novel interactive devices are potentially useful to detect subtle posture or gait-related impairments. (biomedcentral.com)
The greatest differences in posture and gait were found between subjects in H&Y II.5 and H&Y I-I.5 stage, as well as controls. (biomedcentral.com)
Low-cost devices showed potential to objectively quantify posture and gait in established PD (H&Y ≥ II). (biomedcentral.com)
Gait and posture were more impaired in akinetic/rigid PD. (biomedcentral.com)
Parkinson's disease (PD) is a neurodegenerative disease, characterized by motor impairments with particular impacts on posture and gait, leading to postural instability and falls [ 1 ]. (biomedcentral.com)
Participants were assessed barefoot (1) standing, over three 40 s trials, under four posture challenging conditions (2) during gait. (bmj.com)
Gait & Posture , 106 , S71-S72. (fhstp.ac.at)
Gait & Posture , 106 , S192-S193. (fhstp.ac.at)
Gait & Posture , 106 , S50-S51. (fhstp.ac.at)
Gait & Posture , 106 , S80-S82. (fhstp.ac.at)
Gait & Posture , Vol. 49, pp. 196-201. (simi.com)
Gait Posture, 34 ( 4) 543-547. (simi.com)

Estimated ground reaction force in normal and pathological gait. (simi.com)

The objective of this research was to compare technical skills composed of kinematic and kinetic variables in the complex motor task of a tumble turn between 9 elites and 9 sub-elite female swimmers. (jssm.org)
A total of 37 kinematic variables were derived from a Direct Linear Transformation algorithm for 3D reconstruction, and 16 kinetic variables measured by a piezoelectric 3D force platform. (jssm.org)
Pearson correlations were applied to the data of the eighteen swimmers to relate the association of 53 kinematic, kinetic variables to the performance of the tumble-turn (3 meters Round Trip Time, 3m RTT). (jssm.org)
The data from these sensors provides key performance outcomes as well as more detailed kinematic, kinetic, and electromyographic data that provides insight into how the performance was obtained. (hindawi.com)
Temporal and kinetic gait parameters were typically more consistent than spatial parameters. (biomedcentral.com)
More specifically, his research and publications are concerned with the kinematic, kinetic and muscular actions associated with human movement, the pathomechanics of orthopedic disabilities and issues related to rehabilitation of the musculoskeletal system. (bsmpg.com)

The identification of high variability is associated with low reliability and those parameters should be ignored or excluded from gait data interpretation. (bvsalud.org)
Moreover, marker placement error has been demonstrated to be the biggest source of variability in gait analysis and may be affected by factors intrinsic to the evaluators such as the evaluator's expertise which could be appraised through his/her experience and confidence in marker placement. (bvsalud.org)
Objectives: In the present study, we hypothesized that confidence in marker placement is correlated with kinematic variability and could potentially be used as part of a score of reliability. (bvsalud.org)
However, no correlation was observed between confidence scores and kinematic variability and the formulated hypothesis was not supported. (bvsalud.org)
2009). Gait Variability while Walking with Three Different Speeds. (simi.com)
Motor abundance allows reliability of motor performance despite its variability. (sharif.edu)

One protocol included data from a cohort of 32 pathological and 24 asymptomatic subjects where gait analysis was repeated three times, involving two evaluators. (bvsalud.org)
However, it is unknown whether the differences found actually reflect greater accuracy, or whether comparable differences would be observed in pathological gait. (cdc.gov)
Clinical Significance: Pathological gait often includes substantial non-sagittal motion. (cdc.gov)

Accurate assessment of balance and gait is necessary to monitor the clinical progress of Parkinson's disease (PD). (biomedcentral.com)
Background The Instrumented Stand and Walk (ISAW) test, which includes 30 seconds of stance, step initiation, gait, and turning, results in many objective balance and gait metrics from body-worn inertial sensors. (highwire.org)
Objective It was hypothesized that balance and gait represent several independent domains of mobility and that not all domains would be abnormal in individuals with Parkinson disease (PD) or would change with levodopa therapy. (highwire.org)
Conclusions The different sensitivity various balance and gait domains to PD and to levodopa also support neural control of at least 6 independent mobility domains, each of which warrants clinical assessment for impairments in mobility. (highwire.org)
3 This new, wearable technology streams synchronized body motion data to a laptop that automatically provides a myriad of balance and gait metrics during protocols such as the ISAW, but it is not clear which measures provide independent, versus redundant, information about mobility impairments. (highwire.org)

Conclusions In contrast to previous research, this study suggests that people with mild to moderate CLBP present with similar standing postural control, and parameters of gait to asymptomatic individuals. (bmj.com)
Treatments directed at influencing postural stability (eg, standing on a wobble board) or specific parameters of gait may be an unnecessary addition to a treatment programme. (bmj.com)
Evaluation was performed using two or more devices, and the appropriate device was selected by comparing the 14 parameters of gait evaluation. (e-arm.org)

Introduction: Three-dimensional gait analysis is widely used for the clinical assessment of movement disorders. (bvsalud.org)
Proceedings of the 14th Annual Meeting of the Gait and Clinical Movement Analysis Society (GCMAS), March 10-13, 2009, Denver, Colorado. (cdc.gov)
The influence of demographic and clinical variables on the performance in the instrumented posturographic and gait tests, the sensitivity of these tests to the clinical condition and phenotypes, and their convergent validity with clinical scales were investigated. (biomedcentral.com)
High significant correlations were found between the limits of stability and most of gait parameters with the clinical scales. (biomedcentral.com)
However, kinematic measures used in laboratories are not readily transferable to clinical practice, as they require complex equipment such as force plates and motion analysis systems. (springer.com)
Over the last 20 years, instrumented treadmills that incorporate one or more high-fidelity force plates have emerged as a valuable measurement tool in clinical gait studies and applied research settings [ 4 - 6 ]. (biomedcentral.com)
Routinely assessed by observation through clinicians, gait is rated as part of categorical clinical scores. (plos.org)
Taken together, we successfully show that wearable sensor-based gait analysis reaches clinical applicability providing a high biomechanical resolution for gait impairment in Parkinson's disease. (plos.org)
These data demonstrate the feasibility and applicability of objective wearable sensor-based gait measurement in Parkinson's disease reaching high technological readiness levels for both, large scale clinical studies and individual patient care. (plos.org)
The purpose of this pilot study was to assess intra-clinician reliability of IASTM force (i.e., mean normal force) during a simulated, one-handed stroke IASTM intervention across different levels of IASTM clinical experience. (ijspt.org)
Dr. Powers is a Fellow of the American College of Sports Medicine and a member of the American Physical Therapy Association (Orthopaedic and Research sections), American Society for Biomechanics, American Society for Testing and Measures, and the North American Society for Gait and Clinical Movement Analysis. (bsmpg.com)
Three-dimensional (3-D) kinematic analyses are used widely in both sport and clinical examinations. (infona.pl)
The IMU-based gait analysis system is beneficial in evaluating gait in clinical fields. (e-arm.org)

Recently, we developed a wearable sensor-based gait analysis system as diagnostic tool that objectively assesses gait parameter in Parkinson's disease without the need of having a specialized gait laboratory. (plos.org)

A second protocol included data from a cohort of 8 asymptomatic adults with gait analysis repeated 12 times, per participant, and involving four evaluators with a wider range of experience. (bvsalud.org)
gait outcomes were hip range of movement and peak moments, walking speed, cadence and stride length, assessed using force plates and a motion analysis system. (bmj.com)
Kinematic analysis of the sliding stop in western riding at the mallorca western reining trophy 2006. (simi.com)
2010). Kinematic motion analysis of the joints of the forelimbs and hind limbs of dogs during walking exercise regimens. (simi.com)
A total of 15 women with hip OA and 15 age-matched female controls wore a three-dimensional (3-D) motion analysis system and walked at a self-selected speed on the LBPP treadmill. (researchsquare.com)
The longitudinal analysis revealed that gait parameters were sensitive to changes by mirroring the progressive nature of Parkinson's disease and corresponded to physician ratings. (plos.org)
Possibilities and Limitations of the Newest Generation of Video Based 3D Gait Analysis System. (simi.com)
Test-retest reliability of 2-D marker based gait analysis on healthy subjects during stair decent. (simi.com)
Gait Analysis after Tibialis Anterior Tendon Rupture Repair Using Z-Plasty. (simi.com)
Sannino, G. All-on-4 concept: a 3-dimensional finite element analysis. (isbweb.org)
First, a covariance analysis showed that postural sway measures were independent of gait measures. (highwire.org)
Then, the factor analysis revealed 6 independent factors (mobility domains: sway area, sway frequency, arm swing asymmetry, trunk motion during gait, gait speed, and cadence) that accounted for 87% of the variance of performance across participants. (highwire.org)
This study focuses on gait analysis using the inertial measurement unit (IMU) system, which can also be used to determine the most appropriate assistive device for patients with gait disturbances. (e-arm.org)
Moreover, this gait analysis was effective in determining the most appropriate device for each patient. (e-arm.org)
According to the previous studies, sensor technology is one of the emerging methods that can be effectively used in gait analysis. (e-arm.org)

His primary teaching responsibilities include the areas of biomechanics and the mechanics of human gait. (bsmpg.com)

Reliability of ground reaction forces measured on a treadmill system in healthy dogs. (simi.com)
Further investigation of reduced lower leg girth is required due to the important role lower leg musculature plays in attenuating ground reaction forces during the gait cycle. (biomedcentral.com)

Dual-tasking enhanced the differences among all groups in gait parameters. (biomedcentral.com)
Dual-tasking gait evaluation was more sensitive to detect differences among PD stages and compared to controls than free gait. (biomedcentral.com)
Repeated measures ANOVAs within a generalized linear modelling framework were used to assess between-session differences in gait parameters. (biomedcentral.com)

Distinct gait characteristics like short steps and shuffling gait are prototypical signs commonly observed in Parkinson's disease. (plos.org)
To translate this prototype into medical care, we conducted a cross-sectional study including 190 Parkinson's disease patients and 101 age-matched controls and measured gait characteristics during a 4x10 meter walk at the subjects' preferred speed. (plos.org)

One potential way to solve this limitation is to use a marker-less motion capture system, the three-dimensional (3D) inertial measurement unit (IMU). (e-arm.org)

Three-dimensional (3D) gait analyses during level walking and stair climbing will be performed at baseline and follow-up sessions. (biomedcentral.com)

There is an increasing need to provide quantitative measurements of gait, e.g. to provide detailed information about disease progression. (plos.org)

Electrically operated walking orthoses are used for gait rehabilitation that assist, through sophisticated software, the movement of the lower limbs in walking. (uniroma1.it)
These are exoskeletons, initially designed for military purposes and now finding use in the rehabilitation of people with gait difficulties (spinal cord injuries, stroke hemiplegia, multiple sclerosis injuries). (uniroma1.it)
Towards personalized gait rehabilitation: How robustly can we identify personal gait signatures with machine learning? (fhstp.ac.at)

To evaluate the gait pattern of patients with gait disturbances without consideration of defilades due to assistive devices. (e-arm.org)
Specifically, it is useful in evaluating patients with gait disturbances who require assistive devices. (e-arm.org)
Furthermore, it allows the establishment of an evidence-based decision for the most appropriate assistive walking devices for patients with gait disturbances. (e-arm.org)

However, measurement error reduces the reliability of kinematic data and consequently assessment of gait deviations. (bvsalud.org)

Freehand two-dimensional and threedimensional ultrasound was used to assess muscle properties of the relaxed medial gastrocnemius muscle at three ankle joint angles: maximum dorsiflexion, neutral and maximum plantarflexion. (scite.ai)

Individuals with PD were also assessed with the Tinetti Performance Oriented Mobility Assessment, the Functional Gait Assessment and the 10-m Walking Test. (biomedcentral.com)
Purpose: This study aimed (i) to determine the reliability of two-dimensional ultrasonography for the assessment of biceps femoris long head (BFlh) architectural characteristics and (ii) to determine whether limbs with a history of strain injury in the BFlh display different architecture and eccentric strength compared to uninjured limbs. (edu.au)

Conclusions: These data indicate that two-dimensional ultrasonography is reliable for assessing BFlh architecture at rest and during graded isometric contractions. (edu.au)

Methods: To do so, test-retest gait data were acquired from two different experimental protocols. (bvsalud.org)
Methods: This case-control study (control [n = 20], injured group [n = 16], males) assessed the BFlh architecture at rest and during graded isometric contractions using two-dimensional ultrasonography. (edu.au)

The joint motion during this phase allows the transfer of weight onto the new stance phase leg while attenuating shock, preserving gait velocity, and maintaining stability. (medscape.com)
Increased gait cycle time and swing phase and decreased stance phase were observed in devices requiring significant assistance. (e-arm.org)

Functional mobility requires the ability to: (1) maintain stable equilibrium during stance, (2) make appropriate anticipatory postural adjustments (APAs) prior to step initiation, (3) generate speed and temporal coordination of gait, (4) control trunk and arm displacements while walking, and (5) produce stable turns in walking direction. (highwire.org)

Therefore, regarding the use of the LBPP treadmill for patients with hip OA, clinicians should consider the benefits of pain reduction rather than the kinematic changes. (researchsquare.com)
However, little is known regarding the reliability of forces applied by clinicians of different experience levels during an IASTM intervention. (ijspt.org)

age, 9 +/- 1.5 yrs) and two cerebral palsy (CP) patients (1 male age 10 yrs with apparent equinus, 1 female age 14 yrs with Winters type 4 gait pattern) walking over ground at a preferred speed. (cdc.gov)
Kinematic data were collected from 10 non-specific CLBP and 10 non-CLBP control volunteers while the subjects were walking at their preferred speed. (sharif.edu)

The results were a set of joint torque-actuated forward dynamic simulations that closely resembled subject-specific gait patterns. (cdc.gov)
Variation of body weight supported treadmill training parameters during a single session can modulate muscle activity patterns in post-stroke gait. (ucdavis.edu)
Patients' gait patterns were analyzed using the IMU system with different assistive devices to determine the most appropriate device depending on the patient's condition. (e-arm.org)
it measures and analyzes several gait-related parameters such as movement patterns, strength, and joint angle, and range of motion (ROM) [ 1 ]. (e-arm.org)

Slight variations occur in the percentage of stance and swing related to gait velocity. (medscape.com)

The gait cycle (GC), in its simplest form, consists of stance and swing phases. (medscape.com)
A study by Ricci et al demonstrated the importance of the pubic rami in maintaining pelvic integrity during loading in the gait cycle. (medscape.com)

The result of the gait evaluation in all 18 patients was analyzed using the IMU system. (e-arm.org)

In these systems, there is a support, connected to a computer, which is applied to the lower limbs and which simultaneously allows the patient's weight to be discharged, in part or in full, and to assist his gait in a motorized manner, varying its various parameters (speed, frequency, stride length, knee and hip joint excursion) and to provide diversified assistance to one limb with respect to the contralateral one. (uniroma1.it)

To determine intraindividual changes in gait, we monitored the gait characteristics of 63 patients longitudinally. (plos.org)
The effects of high custom made shoes on gait characteristics and patient satisfaction in hemiplegic gait. (simi.com)

Introduction: The conventional gait model (CGM) uses a minimal marker configuration to track three-dimensional lower extremity motion. (cdc.gov)
Results Sway area, gait speed, and trunk motion differed between the PD group in the off-levodopa state and the control group, but sway frequency (but not sway area) differed between the PD group in the off-levodopa state and the control group. (highwire.org)
Four of the 6 factors changed significantly with levodopa (off to on): sway area, sway frequency, trunk motion during gait, and cadence. (highwire.org)

A prior study by our group showed that gait measures derived using redundant marker sets differ significantly from those obtained using a CGM approach in normal subjects, particularly in the non-sagittal plane. (cdc.gov)
However, a lack of confidence in non-sagittal gait measures diminishes the usage of such data for treating movement disorders. (cdc.gov)

However, the CGM relies on shared markers between segments, which may adversely affect the reliability of non-sagittal joint angles. (cdc.gov)

Comparison of depth cameras for three-dimensional reconstruction in medicine. (shu.ac.uk)

The primary aim of this study was to evaluate the reliability and validity of the presented questionnaire. (bvsalud.org)

The human ankle joint complex plays a fundamental role in gait and other activities of daily living. (biomedcentral.com)

however, many previous studies present data from small samples, or have used methodologies with questionable reliability. (bmj.com)

This study provides Level-II evidence that single-event multilevel surgery improves the gait of children with spastic diplegic cerebral palsy twelve months after surgery. (scite.ai)

Anatomy1

Diseases3

Analytical, Diagnostic and Therapeutic Techniques and Equipment4

Psychiatry and Psychology2

Phenomena and Processes4

Anthropology, Education, Sociology and Social Phenomena1

Information Science1

Health Care3

Kinematics14

Spatiotemporal8

Posture12

Normal and pathological gait1

Kinetic6

Variability6

Pathological3

Balance and gait5

Parameters of gait3

Clinical13

Wearable-sensor-based1

Analysis15

Biomechanics1

Ground reaction forces2

Differences3

Parkinson's2

Inertial1

Analyses1

Measurements1

Rehabilitation3

Disturbances3

Measurement1

Assess1

Assessment2

Conclusions1

Methods2

Stance phase2

Temporal1

Clinicians2

Walking2

Patterns4

Velocity1

Cycle2

Evaluation1

Stride1

Characteristics2

Motion3

Measures2

Joint angles1

Reconstruction1

Primary1

Fundamental1

Data1

Study1