The Value of Exercise at One-Half Earth Gravity in Preventing Adaptation to Simulated Weightlessness,
Abstract
Twelve male subjects participated in two identical series to determine the value of exercising four hours daily at one-half Earth gravity (simulated) to prevent loss of exercise capacity and orthostatic tolerance when exposed to 14 days of simulated weightlessness. In one series four subjects exercised at half-gravity (HGE subjects) on treadmills mounted in a human centrifuge and four exercised on treadmills mounted on inclined planes; in the other series the subjects switched exercise devices. Four subjects served as no- exercise controls throughout both series. Additional measurements included: plasma volume and red cell mass, urinary sodium and potassium, and peripheral renin activity. The results are discussed in terms of their significance for long-range plans involving the use of artificial gravity as a countermeasure on space missions. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 25, 1973
- Accession Number
- AD0767646
Entities
People
- Ashton Graybiel
- John Hoche
Organizations
- Naval Aerospace Medical Research Laboratory