DocumentCode :
2492607
Title :
Exercise countermeasures used during space flight
Author :
Hagan, R.D. ; Schaffner, G.
Author_Institution :
Human Adaptation & Countermeasures Office, NASA Johnson Space Center, Houston, TX, USA
Volume :
3
fYear :
2002
fDate :
23-26 Oct. 2002
Firstpage :
2159
Abstract :
Weightlessness during space flight elicits significant losses in bone density, muscle strength, and cardiorespiratory conditioning. Exercise may be considered the primary countermeasure to these changes, yet to date cycle ergometry, treadmill locomotion, and resistive exercise have not been able to produce post flight values equal to those seen at preflight. Improvements in the effectiveness and efficiency of exercise countermeasures will rely on ground based and flight studies that examine the specific stimulus provided in terms of exercise modes, durations, intensities, and frequencies. Biomechanical evaluations should be conducted to determine how different exercise modes affect specific body regions in terms of bone, muscle and cardiovascular stimulus. Flight studies must be carefully designed around operational concerns. Finally, new exercise countermeasures need to be evaluated to determine if they offer additional capabilities beyond current approaches.
Keywords :
aerospace biophysics; biomechanics; bone; cardiovascular system; muscle; biomechanical evaluations; cycle ergometry; exercise countermeasures; flight studies; ground based studies; resistive exercise; space flight; treadmill locomotion; weightlessness effects; Atrophy; Bones; Cardiology; Frequency; Humans; Immune system; Muscles; NASA; Springs; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint
ISSN :
1094-687X
Print_ISBN :
0-7803-7612-9
Type :
conf
DOI :
10.1109/IEMBS.2002.1053218
Filename :
1053218
Link To Document :
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