Document Detail

Stress, workload and physiology demand during extravehicular activity: a pilot study.
MedLine Citation:
PMID:  22754877     Owner:  NLM     Status:  PubMed-not-MEDLINE    
BACKGROUND: Extravehicular activity (EVA), such as exercise performed under unique environmental conditions, is essential for supporting daily living in weightlessness and for further space exploration like long Mars mission.
AIM: The study was planned stress, workload, and physiological demands of simulated Mars exploration.
MATERIALS AND METHODS: In this study, the six-person crew lived (24 hours) for 14 days during a short-term stay at the Mars Desert Research Station. The heart rates, salivary cortisol, workload, peak oxygen uptake or maximal aerobic capacity of the crew are measured before, during and after an EVA.
RESULTS: Data for heart rate showed the same trend as peak oxygen uptake or maximal aerobic capacity, with a maximal increase to 85% of peak. The rating of subscale showed a significant increase in EVA as compared to run. Salivary cortisol levels and heart rates were increased in both groups, although significant increased of cortisol levels and heart rates more in EVA as compared to hill running crew members.
CONCLUSION: Further study is required on large scale taken into account of limitations of this study and including other physiological and psychological parameters in Mars analog environment.
Balwant Rai; Jasdeep Kaur; Bernard H Foing
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  North American journal of medical sciences     Volume:  4     ISSN:  1947-2714     ISO Abbreviation:  N Am J Med Sci     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-07-03     Completed Date:  2012-10-02     Revised Date:  2013-05-30    
Medline Journal Info:
Nlm Unique ID:  101521411     Medline TA:  N Am J Med Sci     Country:  India    
Other Details:
Languages:  eng     Pagination:  266-9     Citation Subset:  -    
Simulated Microgravity and Human Body, JBR Institute of Health Education Research and Technology, India.
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