Work Rate Decrease At A Fixed Heart Rate To Evaluate Exercise Tolerance In Microgravity

Aerobic exercise prescription is usually set at specific heart rate (HR) values. Previous studies demonstrated that during exercise carried out at a HR slightly above that corresponding to the gas exchange threshold (GET), work rate (w') has to decrease in order to maintain HR constant. Simulated microgravity (bed rest, BR) determines a significant impairment of oxidative metabolism and exercise tolerance. PURPOSE: To test the hypothesis that...