Physiological exercise tolerance. Medical search. Frequent questions

In fact, independent of heat acclimation, extreme heat stress can lower your VO2max during exercise and keep you from running at a "maximal aerobic level. (irunfar.com)
In our projects we combine physiological measurements like VO2MAX, muscular strength and glucose tolerance with preclinical, e.g. (lu.se)

Intermittent hypoxic training (IHT) is sometimes used by athletes to enhance non-hematological physiological adaptations to simulated altitude. (altitudecentre.com)
This experiment aimed to investigate the efficacy of twice-daily, nonconsecutive heat acclimation (TDHA) in comparison to once-daily heat acclimation (ODHA) and work matched once- or twice-daily temperate exercise (ODTEMP, TDTEMP) for inducing heat adaptations, improved exercise tolerance, and cytokine (immune) responses. (edu.hk)
We also seek to understand how chronic exposure to altitude leads to adaptations that improve exercise performance. (edu.au)
Physical training is a process consisting of a series of physiological stresses that bring about or preserve specific adaptations to enhance a subject's ability to tolerate the stressing factors arising from training (8,16,30,52) . (lww.com)
Therefore, training-induced skeletal muscle adaptations are such that the trained muscle increases its tolerance to exercise (30) . (lww.com)

Conclusions Protection masks are associated with significant but modest worsening of spirometry and cardiorespiratory parameters at rest and peak exercise. (researchgate.net)
In animals, açai supplementation and exercise led to benefits in exercise tolerance and improvements in several hemodynamic parameters, as well as significant improvements in liver markers and glucose metabolism. (bvsalud.org)

Prior to exercise in the heat, athletes may gain a thermoregulatory and performance advantage by 'pre-cooling' their bodies rather than using a traditional 'warm-up. (gssiweb.org)
At the Environmental Physiology Research Laboratory, we use exercise to help prevent or attenuate the decline in cardiovascular and thermoregulatory function associated with ageing and different health conditions, so as to maintain or improve resilience to rising global temperatures. (edu.au)

Smoking marijuana decreases exercise test duration in maximal exercise tests, increases the heart rate at submaximal levels of exercise. (erowid.org)
V̇O 2 max is the measurement of the maximum amount of oxygen that an individual can utilize during intense, or maximal exercise. (lesmills.com)
However, since exercise ventilatory limitation is far from being reached, their use is safe even during maximal exercise, with a slight reduction in performance. (researchgate.net)

However, few studies have examined the effects of L. plantarum TWK10 (LP10) supplementation on exercise performance, physical fatigue, and gut microbial profile. (mdpi.com)

The Environmental Physiology Research Laboratory at UCRISE examines the physiological mechanisms that impact on health and performance in adverse environments (heat and altitude), along with strategies to mitigate their influence and harness their adaptive potential. (edu.au)
VitalStim Therapy and Beyond: DINES (Dynamic Integration of NMES and Exercise for Swallowing) This accredited hands-on competency course will focus on the muscle physiology, kinesiology, and pathology of the normal and abnormal swallowing mechanisms. (ciaoseminars.com)
To date, however, little is known about the potential effects of physical exercise on the underlying disease mechanisms. (hindawi.com)
This study explored explanatory physiological mechanisms. (cdc.gov)

This study investigated whether IHT would result in greater improvements in muscle energetics and exercise tolerance compared with work matched intermittent normoxic (sea level) training (INT). (altitudecentre.com)
Improvements in the time-to-exhaustion during incremental exercise were not significantly different between training conditions either in normoxia or hypoxia. (altitudecentre.com)
Endobronchial-valve treatment for advanced heterogeneous emphysema induced modest improvements in lung function, exercise tolerance, and symptoms at the cost of more frequent exacerbations of COPD, pneumonia, and hemoptysis after implantation. (nih.gov)
Once- and twice-daily heat acclimation conferred similar magnitudes of heat adaptation and exercise tolerance improvements, without differentially altering immune function, thus nonconsecutive TDHA provides an effective, logistically flexible method of HA, benefitting individuals preparing for exercise-heat stress. (edu.hk)
This study examined whether Pasos Adelante participants living in a US border community showed improvements in selected physiological measures after participating in the program and whether changes were maintained at 3-month follow-up. (cdc.gov)
To determine whether the intervention leads to more objective changes, we conducted a follow-up study to examine whether Pasos Adelante participants living in a US border community experienced improvements in select physiological measures after participating in the program and whether changes were maintained 3 months after the program ended. (cdc.gov)
Pasos Adelante program would result in significant physiological improvements among residents of 1 US-Mexico border community. (cdc.gov)

and is sensitive to factors such as fatigue, physiological and psychological stress, and has also been shown to be related to respiratory activity. (frontiersin.org)
Our intention is to undertake meaningful scientific research in order to better understand the influence of factors on human behaviour related to sport and exercise , particularly the influence of exercise participation on psychological factors like mental health and well-being, self-regulation as well as health and risk behaviour. (uibk.ac.at)
A sedentary lifestyle, as well as daily exercise routines at different intensities, may affect the physical, psychological, and social condition of any person. (uibk.ac.at)
A primary aim is to further our fundamental understanding of the regulation and adaptation of the cardiovascular, respiratory and neuromuscular systems to exercise and training, as well as the physiological, biomechanical and psychological limitations to human sports performance and exercise tolerance. (prospects.ac.uk)
The rehabilitation programme included exercise, education, dietary and psychological support. (bvsalud.org)

Due to differences in modalities, time course, study design and outcomes, it is not possible to define a single 'physiological time window' for SRC recovery. (bmj.com)
This review describes what is known about effects of marijuana and cannabinoids in relation to human physiological and disease outcomes. (erowid.org)
Our recent work has opened exciting opportunities to address this problem, ranging from truly individualized training advice based on genetic information to possible pharmacological interventions for improving health outcomes by exercise. (lu.se)

4- Increases exercise tolerance. (ineedmotivation.com)
Dehydration reduces exercise performance, decreases time to exhaustion, and increases internal heat load. (cdc.gov)

Problematically, because of its small size and the short-term physiological measurements that were taken, this study is not strong evidence that beetroot juice can increase stamina. (mynewsdesk.com)
Pre-exercise blood pressure and heart rate (HR) measurements are determined in a seated position in a private room using an automated device. (who.int)

This also results in elevated cortisol levels, causing insulin resistance, impaired glucose tolerance, dyslipidemia and ultimately cardiovascular disease. (acc.org)
Aging and cellular senescence and disease: The influence of diet and exercise" Not surprisingly, mice consuming a fast food diet for 5 months gain weight, have impaired glucose tolerance, and blood pressure problems. (scienceblogs.com)
We used loss- and gain-of-function approaches including genetic manipulation of the lipolytic enzyme Pnpla2 , change in environmental temperature, and lifestyle interventions to comprehensively test the premise that a thermogenic-like BAT phenotype is coupled with enhanced glucose tolerance in female mice. (diabetesjournals.org)
This rate may be doubled if those with impaired glucose tolerance (IGT) are also included. (who.int)

At the Environmental Physiology Research Laboratory, we seek to understand how hypoxia, as well as hyperoxia, influence the ability to perform aerobic exercise. (edu.au)

Each test involves one hour of exercise on a treadmill in a climatic chamber. (cdc.gov)
Ten subjects underwent treadmill exercise at 5.6 km/h over one hour while wearing each of three identical appearing, cup-shaped, prototype filtering facepiece respirators that differed only in their filter resistances (3 mm, 6 mm, and 9 mm H O pressure drop). (cdc.gov)
Participants are instructed to remain on the treadmill until their work tolerance is compromised, at which point they receive a 2-minute low-intensity active recovery period. (who.int)

Many chronic illnesses limit tolerance to heat and predispose people to heat-related illness, most importantly, cardiovascular disease, diabetes, renal disease, certain medications, and extensive skin disorders or scarring that limit sweating. (cdc.gov)
Apart from environmental conditions and intensity of exercise, dehydration is the most important predisposing factor in heat-related illness. (cdc.gov)
The above workers are at increased risk of heat-related illness because of physiological (i.e., related to body function and exertion) and/or behavioral factors. (osha.gov)

Muscle metabolic and neuromuscular determinants of fatigue during cycling in different exercise intensity domains. (termedia.pl)
Primary causes of fatigue during exercise in the heat include cardiovascular strain and high rates of glycogen utilization. (gssiweb.org)
However, energy supply from PCR and glycolysis is limited, and when performing exercise under anaerobic conditions the body produces many by-products (lactate, H+ ions, Inorganic Phosphates etc.) which all contribute to an imbalance of the body's internal system causing us to fatigue or slow down. (lesmills.com)
Dietary nitrate supplementation enhanced short-term endurance exercise performance with concomitant mental fatigue but did not improve cognitive performance post-fatigue. (shu.ac.uk)

Before and after the training intervention, subjects completed a test protocol consisting of a bout of submaximal constant-work-rate exercise, a 24-s high-intensity exercise bout to quantify the phosphocreatine recovery time constant, and an incremental test to the limit of tolerance.The tests were completed in normoxia and hypoxia in both INT and IHT legs. (altitudecentre.com)
Most activities of daily living represent exertion at submaximal exercise levels, so a measure of the ability to sustain a given submaximal exercise (endurance capacity) is an important component of the assessment of disability. (bmj.com)

The 6-Minute Walk Test (6MWT) is a widely used measurement of functional exercise capacity in chronic lung disease. (nih.gov)
The aim of this study was to 1) establish the relationship between the 6-Minute Walk Distance (6MWD), disease severity and Health-Related Quality of Life (HRQOL) and 2) identify predictors of exercise tolerance in adults with bronchiectasis. (nih.gov)
Measures of HRQOL demonstrated a stronger association with the 6MWD compared to physiological measures of disease severity in patients with predominantly mild to moderate bronchiectasis. (nih.gov)
Basic research should examine the effects of exercise on degenerative processes, such as cardiovascular disease, glucose and lipid impairment, osteoporosis and osteoarthritis, psychosocial dysfunction, and immune dysfunction. (cdc.gov)
Research should determine the role of physical exercise in maintaining functional capacity and preventing degenerative disease, especially in perimenopausal and postmenopausal women, by increasing or maintaining muscular strength and endurance, cardiorespiratory function, agility, coordination, and flexibility. (cdc.gov)
Once quality has been assured, the next steps involve a series of comparisons 6 that include comparisons of test results with reference values based on healthy subjects 5 , comparisons with known disease or abnormal physiological patterns ( i.e. obstruction and restriction), and comparisons with self, a rather formal term for evaluating change in an individual patient. (ersjournals.com)
Our study indicates that HIIT counteracts atherosclerotic coronary disease progression and reduces atheroma volume in residual coronary atheromatous plaques following PCI [percutaneous coronary intervention] … Our results reinforce the scientific background for recommending physical exercise as an important component of cardiac rehabilitation program. (activistpost.com)
However, the effect of exercise on the underlying disease pathogenesis remains elusive. (hindawi.com)
Although it is likely that only the effects of a sedentary lifestyle can be reversed by physical exercise [ 7 ], it has been suggested that physical exercise might have the potential to have an impact on the disease pathogenesis of MS as well [ 8 ]. (hindawi.com)
Asymptomatic Infection of Marburg Virus Reservoir Bats Is Explained by a Strategy of Immunoprotective Disease Tolerance. (cdc.gov)
Together, these findings offer the first invivo functional evidence for disease tolerance as an immunological mechanism by which the bat reservoir asymptomatically hosts MARV. (cdc.gov)

Under the conditions of this investigation, IHT does not appreciably alter muscle metabolic responses or incremental exercise performance compared with INT. (altitudecentre.com)
Heat acclimation is the most important intervention one can adopt to reduce physiological strain and optimise performance in the heat. (edu.au)
This training delivers the metabolic benefits of high-intensity exercise, and for some hard-core HIIT fans it may be key to propelling athletic performance to the next level. (lesmills.com)
The intensity of the field endurance test was related to a percentage of each patient's maximum field exercise performance assessed by the ISWT. (bmj.com)
Even with these ways of regulation, the combination of heat stress from the environment and exercise (which creates more heat) can act in tandem to not only hurt athletic performance but also cause serious heat illnesses (1). (irunfar.com)
It is often used to improve exercise performance and muscle mass. (medlineplus.gov)
People commonly use creatine for improving exercise performance and increasing muscle mass. (medlineplus.gov)

Summary/conclusions Modalities of measuring physiological change after SRC were categorised into the following: functional MRI, diffusion tensor imaging, magnetic resonance spectroscopy, cerebral blood flow, electrophysiology, heart rate, exercise, fluid biomarkers and transcranial magnetic stimulation. (bmj.com)

Effects of pacing strategy on work done above critical power during high-intensity exercise. (termedia.pl)
The researchers had looked at this effect in previous studies and noted that people fed these diets seemed to have an improved tolerance of high-intensity exercise. (mynewsdesk.com)
On the last three days of each drinking period, subjects were asked to complete a series of low-intensity and high-intensity 'step' exercise tests to determine their response to exercise. (mynewsdesk.com)
There was difference in the results when low- and high-intensity exercise were compared. (mynewsdesk.com)
[i] You're probably aware that exercise is beneficial for heart health, but few realize the healing potential of certain types of exercise, namely high intensity interval training (HIIT). (activistpost.com)

Institutions (e.g., schools, medical settings, and workplaces) should provide the time, physical facilities, and behavioral programs that lead to increased participation at low levels of physical activity and to more vigorous exercise activity. (cdc.gov)
Prolonged mental stress can lead to two types of responses: physiological and behavioral. (acc.org)

SMIT (also called "Speed Endurance Training") and HIIT are both forms of interval training which involve intense bouts of exercise interspersed with periods of recovery or rest. (lesmills.com)
It is a good indicator of both cardiorespiratory fitness and of endurance capacity during prolonged exercise. (lesmills.com)
However a study examined the effects of SMIT versus HIIT training using endurance and sprint-based exercise in active females. (lesmills.com)
A standardised field test of endurance capacity using constant walking speeds, external regulation of pace, and in which all patients experience a similar level of exercise intensity relative to their individual maximal capacity does not exist. (bmj.com)
Previously, we reported that patients with multiple sclerosis (MS) demonstrate improved muscle strength, exercise tolerance, and lean tissue mass following a combined endurance and resistance exercise program. (hindawi.com)
Recently, we demonstrated improvement in muscle strength, exercise tolerance, and lean tissue mass in MS patients following a combined endurance and resistance exercise program [ 6 ]. (hindawi.com)

Influence of pacing strategy on O2 uptake and exercise tolerance. (termedia.pl)
A test of oxygen uptake in the lungs (vO2) as a response to exercise. (mynewsdesk.com)

This study aimed to assess the predictive capability of different critical power (CP) models on cycling exercise tolerance in the severe- and extreme-intensity domains. (termedia.pl)
Hyperbolic power-time, linear power-inverse of time, and work-time models with three predictive trials were used to determine CP and W'. Modeling with two predictive trials of the CP work-time model was also used to determine CP and W'. Actual exercise tolerance of IHIGH and intensity 5% above IHIGH (IHIGH+5%) were compared to those predicted by all CP models. (termedia.pl)
Exercise tolerance through severe and extreme intensity domains. (termedia.pl)
The requirement for water in the heat is dependent on fluid lost, which in turn depends on such factors as exercise intensity, exercise duration, environmental conditions, state of training and heat acclimatization, gender, and age. (nih.gov)
Jeukendrup explains that the amount of carbohydrates needed during exercise depends on the intensity, type and duration of activity. (gssiweb.org)
The main difference between HIIT and SMIT is the intensity at which you exercise and the length of recovery between intervals. (lesmills.com)
A systematic review and meta-analysis involving 36 studies and 1,437 participants revealed that HIIT increased flow-mediated dilation (FMD) - a measure of endothelial function - in people with cardiometabolic diseases, while moderate-intensity continuous training (MICT) or no exercise did not. (activistpost.com)

In order to sustain intense bouts of anaerobic exercise, such as during SMIT, individuals must rely upon several energy systems. (lesmills.com)
The objective of this study is to investigate whether seven minutes of head cooling applied between bouts of aerobic exercise in hot (35 ± 1.0 °C) and dry (14.68 ±4.29% rh) environmental conditions could positively effect participants peak power output (PP) on a maximal effort graded exercise test (GXT). (jssm.org)

The aim of this study was to examine the relationship between the physiological data from subjects and their reported sensory experiences during two types of recovery methods following a handball training session. (frontiersin.org)
Methods Twelve healthy subjects underwent three cardiopulmonary exercise tests: without wearing protection mask, with surgical and with FFP2 mask. (researchgate.net)

1947). Humans cannot adapt to a chronic water deficit, so fluid losses must be replaced if physiological function is to continue unimpaired. (nih.gov)

It was the aim of this review to compile and briefly synthesize the data reported in the exercise science literature concerning the muscular characteristics of detraining, in both highly trained athletes, on the one hand, and moderately or recently trained individuals, on the other hand. (lww.com)

The acute physiological effects of marijuana include a substantial dose-dependent increase in heart rate, generally associated with a mild increase in blood pressure. (erowid.org)
In real life, however, there is substantial overlap in the physiological abnormalities underlying cardiovascular and respiratory diseases. (ersjournals.com)
The physiological demands of thermoregulation during intense physical activity are substantial, particularly for athletes performing in hyperthermic conditions. (jssm.org)

Approximately 30-50% of athletes experience GI problems during exercise. (gssiweb.org)
In another recent study , two groups of well-trained athletes were subjected to either HIIT or SMIT based exercise. (lesmills.com)

Cardiopulmonary exercise testing (CPET) has long been advocated as the test of choice to determine the primary source of exercise limitation in these patients. (ersjournals.com)
This scenario is partially explained by the fact that the interpretation of CPET in dyspnoeic patients remains heavily focused on physiological constructs. (ersjournals.com)

Future studies need to use generalisable populations, longitudinal designs following to physiological and clinical recovery and careful correlation of neurobiological modalities with clinical measures. (bmj.com)

Participants completed a cycling-graded exercise test, heat acclimation state test, and a time to task failure (TTTF) at 80% peak power output in temperate (TTTFTEMP: 22°C/40% RH) and hot conditions (TTTFHOT: 38°C/20% RH), before and after 10-sessions (60 min of cycling at ~2 W·kg−1) in 45°C/20% RH (ODHA and TDHA) or 22°C/40% RH (ODTEMP or TDTEMP). (edu.hk)
For this test, the participants cycled on an exercise bike while attached to a device that measured their CO2 output and oxygen intake. (mynewsdesk.com)
Forty subjects (19-65 years) underwent body plethysmography, ergometry, cardiopulmonary exercise test and a 4-h wearing period without a mask, with a surgical mask (SM), a community mask (CM), and an FFP2 respirator (FFP2). (researchgate.net)
Although interestingly still 10% of patients got an exercise tolerance test. (medscape.com)
In a double-blind, cross-over study, sixteen subjects ingested either nitrate-rich beetroot juice or a placebo and completed a continuous cycle exercise test involving 20min stages at 50% and 70% V˙O2peak and a final stage at 90% V˙O2peak until volitional exhaustion. (shu.ac.uk)
The test includes a 2-minute warm-up, and then progressive exercise workloads increase every two minutes. (who.int)

Tolerance develops to the acute effects of marijuana smoking and delta9-tetrahydrocannibol (THC) over several days to a few weeks. (erowid.org)
Dietary inorganic nitrate supplementation causes physiological effects which may enhance exercise tolerance. (shu.ac.uk)

Endobronchial valves that allow air to escape from a pulmonary lobe but not enter it can induce a reduction in lobar volume that may thereby improve lung function and exercise tolerance in patients with pulmonary hyperinflation related to advanced emphysema. (nih.gov)
Pulmonary hypertension is defined as a mean pulmonary artery pressure above 25 mm Hg at rest or over 30 mm Hg during exercise. (medscape.com)

When tested on an exercise bike, the rate at which their muscles used up energy and oxygen was found to be slowed. (mynewsdesk.com)
The purpose of this study was to investigate further how a short-term diet of nitrate might result in muscles using less oxygen during exercise. (mynewsdesk.com)
During exercise, phosphocreatine is used as an energy source, lowering its concentration in the muscles, and vO2 is increased as the lungs take in more oxygen. (mynewsdesk.com)

Results indicate that season, job heat exposure, and clothing can influence heat tolerance more than climate of residence. (cdc.gov)

Unlike in the cold, where adaptive behaviors play a more important role in body heat conservation, tolerance to heat depends largely on physiologic factors. (cdc.gov)
Heat regulation depends on a combination of physiological and environmental factors. (cdc.gov)

A long-term goal is to tailor the most beneficial exercise program to counteract genetic predisposition to metabolic diseases and type 2 diabetes. (lu.se)

While exercise intolerance has been identified in patients with bronchiectasis, the clinical determinants of the 6MWT in this population have not been examined. (nih.gov)
Since recent evidence supports a crucial role of dendritic cells (DC) in the pathogenesis of MS, we investigated the effect of a 12-week combined exercise program in MS patients on the number and function of DC. (hindawi.com)

Skeletal muscle tissue is no exception to this rule and also readjusts to the reduced physiological stressors during periods of reduced training stimuli or complete training cessation (6,8,9,14,22,30,48,52,54) . (lww.com)

Changes in muscle metabolite concentrations during exercise were essentially not different between Intermittent Hypoxic Training and Intermittent Normoxic Training. (altitudecentre.com)

Heat cramps are painful muscle contractions that begin ≥1 hours after stopping exercise and most often involve heavily used muscles in the calves, thighs, and abdomen. (cdc.gov)

Relatively few longitudinal studies exist that follow both physiological dysfunction and clinical measures to recovery. (bmj.com)
Multiple studies suggest physiological dysfunction may outlast current clinical measures of recovery, supporting a buffer zone of gradually increasing activity before full contact risk. (bmj.com)

Following is a summary of the recommendations of the Physical Fitness and Exercise Working Group. (cdc.gov)
Multifamily housing should include such facilities as exercise rooms, open spaces, and gardens to provide physical activity options for tenants and their families. (cdc.gov)

Overall, our findings suggest that the 12-week exercise program reduces the secretion of inflammatory mediators upon TLR stimulation and promotes the immunoregulatory function of circulating pDC, suggestive for a favorable impact of exercise on the underlying immunopathogenesis of MS. (hindawi.com)

The researchers were interested in measuring phosphocreatine, also known as creatine phosphate (Pcr), as this provides a rapidly mobilised reserve of high-energy phosphates released during exercise. (mynewsdesk.com)

Physiological Reports, 7(5), e14014. (termedia.pl)
Physiological Reports , 6 (24), [e13936]. (edu.hk)
Players' comments about CWI revealed a congruence between the physiological data and sensorial reports. (frontiersin.org)

Pregnancy and the associated changes are a normal physiological process in response to the development of the fetus. (physio-pedia.com)

Fluid intake before and during exercise can help the body maintain an appropriate body temperature. (gssiweb.org)
Exercise in the heat results in greater sweat losses as compared to a thermoneutral environment, resulting in a greater need to replace both fluid and electrolytes. (gssiweb.org)

Cardiorespiratory fitness is associated with improved body temperature regulation and heat tolerance. (edu.au)

PAD can also stimulate the hematopoietic function of pregnant women, improving the tolerance to blood loss in the delivery process. (scirp.org)

Get up and get moving - this time-efficient exercise is both protective and healing for your heart. (activistpost.com)

What is the physiological time to recovery after concussion? (bmj.com)
Aim or objective The aim of this study is to consolidate studies of physiological measures following sport-related concussion (SRC) to determine if a time course of postinjury altered neurobiology can be outlined. (bmj.com)

Anatomy11

Organisms1

Diseases28

Chemicals and Drugs32

Analytical, Diagnostic and Therapeutic Techniques and Equipment73

Psychiatry and Psychology2

Phenomena and Processes60

Anthropology, Education, Sociology and Social Phenomena15

Technology, Industry, Agriculture2

Humanities1

Information Science1

Health Care26

VO2max2

Adaptations5

Parameters2

Thermoregulatory2

Maximal exercise3

Supplementation on exercise1

Mechanisms4

Improvements7

Psychological5

Outcomes3

Increases2

Measurements2

Glucose tolerance4

Laboratory1

Treadmill3

Heat-related illness3

Fatigue4

Submaximal2

Disease11

Performance7

Functional1

High-intensity5

Behavioral2

Endurance6

Uptake2

Intensity7

Bouts2

Methods2

Chronic1

Muscular1

Substantial3

Athletes2

CPET2

Modalities1

Test6

Effects2

Pulmonary2

Oxygen3

Influence1

Depends2

Metabolic1

Patients2

Periods1

Intermittent1

Heavily1

Clinical2

Physical2

Findings1

Phosphocreatine1

Reports3

Pregnancy1

Fluid2

Cardiorespiratory1

Pregnant1

Protective1

Time2