Related Experiment Videos
Age differences in human skeletal muscle fatigue during high-intensity intermittent exercise
S Ratel1, N Lazaar, C A Williams
1Laboratoire Interuniversitaire de Biologie des Activités Physiques et Sportives, UFR de Médecine, Université d'Auvergne, France. sratel@wanadoo.fr
Unlabelled:
It has been shown at similar relative work rates that children have higher resistance to fatigue than adults during repeated bouts of high-intensity exercise. This age-related difference in fatigue resistance may be explained by factors including muscle mass, muscle morphology, energy metabolism and neuromuscular activation.
Conclusion:
During high-intensity intermittent exercise, recovery periods play an important role in limiting fatigue. Age-related differences in fatigue resistance could also be explained by differences in the rates of resynthesis of some energetic substrates and the rates of removal of various muscle metabolites.