Relatively shorter but intensive isotonic exercise in legs prevented the decrease in maximal aerobic power after 20 days of head down tilt bed rest in man.
As a countermeasures for the decrease in maximal oxygen uptake (VO2max) during prolong simulated weightlessness, it has been suggested that intensive isotonic legs exercise was useful. The reason is possibly that a dynamic and intensive resistance exercise training makes to maintain not only the volume of exercising muscles but also cardiac output. For the reason, it has been studied the effects of 3 different exercise training on VO2max during simulated weightlessness.
Suzuki
Y
Y
Lab. of Human Physiology, Seigakuin Univ.
Takenaka
K
K
Haruna
Y
Y
Akima
H
H
Fukunaga
T
T
Kawakubo
K
K
Gunji
A
A
D001510:Bed Rest; D015444:Exercise; D005081:Exercise Therapy; D018475:Head-Down Tilt; D006801:Humans; D007551:Isotonic Contraction; D007866:Leg; D008150:Lower Body Negative Pressure; D008297:Male; D018482:Muscle, Skeletal / Q000502:physiology*; D010101:Oxygen Consumption; D016276:Ventricular Function; D018544:Weightlessness Countermeasures; D018474:Weightlessness Simulation