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Physiological Adaptations and Countermeasures Associated with Long-Duration Space FlightsOn earth, the presence of gravity imposes weight-bearing gradients on tissues which influence the functions of multiple integrative systems. On the other hand, conditions of actual or simulated microgravity can modify and/or nullify these gradients and subsequently alter structure and function. The purpose of this symposium is to discuss the results from short-term Shuttle flights, long term Skylab or Mir missions, or long-term ground based experiments which indicate or suggest that performance has been or could be compromised in space missions of long durations (>one year) or with space tasks (e.g. building space stations) with the goal of identifying countermeasures that could minimize or eliminate the expected anatomical and physiological consequences. After an overview by C. Tipton from the U. Arizona, the countermeasures necessary for the fluid shifts and select functions of the cardiovascular system will be discussed by A. Hargens from NASA Ames Research Center. He will be followed by K. Baldwin of the U. California at Irvine who will discuss the countermeasures needed to prevent the changes that alter the structure, function and control of skeletal muscles. Since changes in bone mass with microgravity are a major concern of NASA, V. Schneider from NASA Headquarters will present data and the countermeasures for bone. Although the results are limited, the changes in the endocrine and immune system deserve mentioning and C. Tipton will assume this responsibility. V. Convertino from the Air Force School of Aerospace Medicine has the challenge of discussing the role, importance, and the specificity of exercise as an effective countermeasure while I. Kozlovskaya from Moscow will elaborate on the Russian experiences with past countermeasures and provide a viewpoint on future ones. After the brief (25 min.) presentations, the speakers will assemble as a panel to discuss the issues raised and the concerns of the audience.
Document ID
20010116713
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Tipton, C. M.
(NASA Ames Research Center Moffett Field, CA United States)
Hargens, A. R.
(Arizona Univ. Tucson, AZ United States)
Baldwin, K. M.
(California Univ. Irvine, CA United States)
Schneider, V.
(NASA Headquarters Washington, DC United States)
Convertino, V. A.
(Armstrong Lab. Brooks AFB, TX United States)
Kozlovskaya, I.
(Institute of Biomedical Problems Moscow, USSR)
Wade, Charles E.
Date Acquired
August 20, 2013
Publication Date
January 1, 1994
Subject Category
Aerospace Medicine
Meeting Information
Meeting: American College Sports Medicine Symposium
Location: Indianapolis, IN
Country: United States
Start Date: May 31, 1994
End Date: June 6, 1994
Sponsors: American Coll. of Sports Medicine
Funding Number(s)
PROJECT: RTOP 199-14-12-04
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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