Isotonic And Isokinetic Exercise During Bed Rest

Brief, intense activity prevents deterioration of peak oxygen uptake, a measure of work capacity. Study intended to explore effectiveness of exercise in maintaining fitness during long missions in microgravity so crewmembers able to keep up arduous work of building and expanding Space Station. Showed that intermittent, intense exercise of short duration more effective than similar exercise at lower intensity for longer times measured in previous studies. Intense short-term exercise seems to maintain volumes of plasma and red blood cells at normal levels.