Peak oxygen uptake (VO2PEAK) in endurance exercise trained (ET =8) subjects (VO2PEAK = 61.7 1.6 ml 02.kg.min-1) was compared to the V02 PEAK of untrained (UT = 8) subjects (V02 PEAK = 38.4 1.7 ml 02 -kg.min1) after four hours of -6* head-down rest (HDR).Although both groups showed a reduction in blood volume (BV) following HDR, this decrement was greater for ET subjects (delta BV = -3.23 0.46 mi/kg; P <0.05). The ET subjects had a greater decrease in VO2=(delta 02E -5.58 1.05 ml 02-kg.min-1; P <0.05) than their UT peers (VO2PEAK = -2.44 0.79 ml02-kg.min-1). These data suggest that the greater reductions in VO2PE, observed for the ET group were associated with a greater BV loss resulting from 4 h of HDR prior to exercise.
| Identifer | oai:union.ndltd.org:unt.edu/info:ark/67531/metadc504298 |
| Date | 12 1900 |
| Creators | Williamson, Jon W. |
| Contributors | Raven, Peter Bernard, 1940-, Wyatt, Dana L., Hill, David Wilfred, 1952-, Jackson, Allen W. |
| Publisher | University of North Texas |
| Source Sets | University of North Texas |
| Language | English |
| Detected Language | English |
| Type | Thesis or Dissertation |
| Format | ix, 47 leaves, ill., Text |
| Rights | Public, Williamson, Jon W., Copyright, Copyright is held by the author, unless otherwise noted. All rights reserved. |
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