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Differences in Acceleration Training and Exercise Training on Resting Cardiovascular VariablesThe relative effects of alternating exercise vs. acclamation training an mean blood pressure (BP, Finapres), cardiac output (CO, BoMed) and peripheral resistance (PR, calculated) were evaluated. Six healthy men (33$\pm$(SD)6 yr. 178$\pm$4 cm, 86$\pm$6 kg) underwent exercise training (ET, n=3): supine on a cycle ergometer (40 to 90\% Vo$_{2}$ max) during exposure to constant+1G$_{z}$ for $\sim$30 min/day for 14 days on NASA's 1.9m Human Powered Centrifuge (HPC). They also underwent oscillatory (between +1 G$ {z}$and$\sim$2.5G$_{z}$) acceleration training (AT, n=3) for $\sim$30 min/day for 14 days on the HPC. After four weeks of ambulatory deconditioning, training protocols were switched. AT increased resting CO by 9.MpmS(SE)3.2\% (p$less than$0.05) with no effect on BF, and ET decreased BP by 9.2$\pm$4.6\% (p$less than$0.08) as well as spectral power of PR by 41$\pm$9\% (p$less than$0.05). The major effect of acceleration training was to increase resting cardiac output while that of exercise mining was to decrease resting blood pressure.
Document ID
20000109963
Acquisition Source
Ames Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Evans, J. M.
(NASA Ames Research Center Moffett Field, CA United States)
Simonson, S. R.
Knapp, C. F.
Stocks, J. M.
Biagini, H. W.
Cowell, S. A.
Bailey, Kn. N.
Vener, J. M.
Evetts, S. N.
Dalton, Bonnie P.
Date Acquired
August 19, 2013
Publication Date
January 1, 2000
Subject Category
Aerospace Medicine
Funding Number(s)
PROJECT: RTOP UPN-111-10-20
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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