scholarly journals Alterations in Surface Electromyography of the Upper Leg Muscles at Specified Respiratory Exchange Ratio Thresholds Ranges During a Maximal Exercise Test

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Olivia Cooper
Keyword(s):  
Exercise Test ◽  
Surface Electromyography ◽  
Maximal Exercise ◽  
Holistic Approach ◽  
Maximal Exercise Test ◽  
Physiological Variables ◽  
Leg Muscles ◽  
Physiological Alterations ◽  
Main Effect ◽  
Exercise Induced

Introduction: Assessing muscle electromyography (EMG) in conjunction with physiological alterations to exercise may be valuable to determine a more holistic approach to exercise-induced fatigue. Methods: Thirteen, recreationally trained individuals (n = 7 female, n = 6 males) underwent a maximal exercise test. Throughout the test, physiological variables were measured in addition to surface electromyography (sEMG) of the upper legs. Physiological and sEMG data was then grouped in to four category thresholds based on respiratory exchange ratios (RER) greater than 0.95. Results: There was a main effect of group (p < 0.001) as an increase in exercise intensity assessed by RER threshold ranges resulted in a subsequent reductions in sEMG frequencies with the exception of the sEMG frequencies recorded at VO2peak (p < 0.055). Conclusions: Upper leg sEMG frequencies decrease with increases in high intensity exercise, with the exception of near maximal loads.

scholarly journals Relationship Between Physiological Fatigue and Muscular Fatigue Assessed Utilizing Surface Electromyography Wearable Technology

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Gabriel J. Sanders ◽  
Collin Herb ◽  
Roger O. Kollock ◽  
Ashley Bealka ◽  
Olivia Niemi ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Exercise Test ◽  
Surface Electromyography ◽  
Respiratory Exchange Ratio ◽  
Maximal Exercise ◽  
Test Methods ◽  
Physiological Measures ◽  
Maximal Exercise Test ◽  
The Relationship ◽  
Negative Relationships

Introduction: The purpose of the study was to assess the relationship between upper leg muscle fatigue and physiological fatigue during a maximal exercise test. Methods: A total of 13, trained athletes participated and were tested for maximal oxygen uptake (VO2peak). Throughout the test, oxygen uptake respiratory exchange ratio (RER), and heart rate (HR) were recorded simultaneously with surface electromyography (sEMG) electrodes utilizing wearable sEMG compression short technology. Results: During the maximal exercise test, there were significant positive relationships between Muscle Load and all physiological measures (p < 0.001 for all) and significant negative relationships between sEMG frequency and Muscle Load and all physiological measures of fatigue (p < 0.001 for all). Conclusions: Using sEMG wearable compression short technology may be a useful way to measure and monitor muscle strain and fatigue, primarily outside of a laboratory setting. 

Validation of a submaximal versus a maximal exercise test in obese individuals

2015 ◽  
Vol 17 (1) ◽  
pp. 37-44 ◽  
Author(s):  
Anita G.M. Wisén ◽  
Pan Mao ◽  
Leif Christiansen ◽  
Bengt Saltin
Keyword(s):  
Exercise Test ◽  
Maximal Exercise ◽  
Maximal Exercise Test

A COMPARISON OF THE PHYSIOLOGIC RESPONSE OF PATIENTS WITH CHD TO FOUR MAXIMAL EXERCISE TEST PROTOCOLS

1977 ◽  
Vol 9 (1) ◽  
pp. 75 ◽  
Author(s):  
M. D. Glese ◽  
R. J. Corliss ◽  
F. J. Nagle ◽  
T. A. Forman ◽  
Michael Glese
Keyword(s):  
Exercise Test ◽  
Maximal Exercise ◽  
Maximal Exercise Test ◽  
Physiologic Response

scholarly journals P207 Reliability Of Measurements Using Innocor Breath By Breath Analyser During A Maximal Exercise Test In Cystic Fibrosis Patients

Thorax ◽  
2014 ◽  
Vol 69 (Suppl 2) ◽  
pp. A167-A168
Author(s):  
K. Bayfield ◽  
M. McGovern ◽  
A. Simpson ◽  
M. Embley ◽  
S. Cunningham ◽  
...  
Keyword(s):  
Cystic Fibrosis ◽  
Exercise Test ◽  
Maximal Exercise ◽  
Maximal Exercise Test

scholarly journals Effects of annual training cycle on the metabolic response to supra-maximal exercise test in beach volleyball players

2011 ◽  
Vol 27 (1) ◽  
Author(s):  
Łucja Pilaczyńska-Szcześniak ◽  
Damian Lisiecki ◽  
Zbigniew Kasprzak ◽  
Joanna Karolkiewicz ◽  
Ewa Śliwicka ◽  
...  
Keyword(s):  
Exercise Test ◽  
Maximal Exercise ◽  
Metabolic Response ◽  
Maximal Exercise Test ◽  
Training Cycle ◽  
Volleyball Players

The Higher the Insulin Resistance the Lower the Cardiac Output in Men with Type 1 Diabetes During the Maximal Exercise Test

2017 ◽  
Vol 15 (5) ◽  
pp. 252-257 ◽  
Author(s):  
Pawel Niedzwiecki ◽  
Dariusz Naskret ◽  
Stanislaw Pilacinski ◽  
Maciej Pempera ◽  
Aleksandra Uruska ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Type 1 Diabetes ◽  
Cardiac Output ◽  
Exercise Test ◽  
Maximal Exercise ◽  
Maximal Exercise Test

Different Signatures of High Cardiorespiratory Capacity Revealed With Metabolomic Profiling in Elite Athletes

2020 ◽  
Vol 15 (8) ◽  
pp. 1156-1167 ◽  
Author(s):  
Gustavo Monnerat ◽  
Carlos A.R. Sánchez ◽  
Caleb G.M. Santos ◽  
Dailson Paulucio ◽  
Rodolfo Velasque ◽  
...  
Keyword(s):  
High Resolution ◽  
Exercise Test ◽  
Human Performance ◽  
Energy Use ◽  
Maximal Exercise ◽  
Maximal Oxygen Consumption ◽  
Endurance Performance ◽  
Maximal Exercise Test ◽  
Long Distance ◽  
Metabolic Alterations

Purpose: High cardiorespiratory capacity is a key determinant of human performance and life expectancy; however, the underlying mechanisms are not fully understood. The objective of this pilot study was to investigate biochemical signatures of endurance-performance athletes using high-resolution nontargeted metabolomics. Methods: Elite long-distance runners with similar training and anthropometrical records were studied. After athletes’ maximal oxygen consumption () was measured, they were divided into 2 groups: low (<65 mL·kg−1·min−1, n = 7) and high (>75 mL·kg−1·min−1, n = 7). Plasma was collected under basal conditions after 12 hours of fasting and after a maximal exercise test (nonfasted) and analyzed by high-resolution LC–MS. Multivariate and univariate statistics were applied. Results: A total of 167 compounds were putatively identified with an LC–MS-based metabolomics pipeline. Partial least-squares discriminant analysis showed a clear separation between groups. Significant variations in metabolites highlighted group differences in diverse metabolic pathways, including lipids, vitamins, amino acids, purine, histidine, xenobiotics, and others, either under basal condition or after the maximal exercise test. Conclusions: Taken together, the metabolic alterations revealed in the study affect cellular energy use and availability, oxidative stress management, muscle damage, central nervous system signaling metabolites, nutrients, and compound bioavailability, providing new insights into metabolic alterations associated with exercise and cardiorespiratory fitness levels in trained athletes.

Maximal Exercise Test

2013 ◽  
pp. 1201-1201
Author(s):  
Riyad Khanfer ◽  
John Ryan ◽  
Howard Aizenstein ◽  
Seema Mutti ◽  
David Busse ◽  
...  
Keyword(s):  
Exercise Test ◽  
Maximal Exercise ◽  
Maximal Exercise Test
Sign in / Sign up

Export Citation Format

Share Document