Document Detail


VO2 prediction and cardiorespiratory responses during underwater treadmill exercise.
MedLine Citation:
PMID:  21699106     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
We compared cardiorespiratory responses to exercise on an underwater treadmill (UTM) and land treadmill (LTM) and derived an equation to estimate oxygen consumption (VO2) during UTM exercise. Fifty-five men and women completed one LTM and five UTM exercise sessions on separate days. The UTM sessions consisted of chest-deep immersion, with 0, 25, 50, 75, and 100% water-jet resistance. All session treadmill velocities increased every 3 min from 53.6 to 187.8 m x min(-1). Cardiorespiratory responses were similar between LTM and UTM when jet resistance for UTM was 50%. Using multiple regression analysis, weight-relative VO2 could be estimated as: VO2 (mLO2 c kg(-1) x min(-1)) = 0.19248 x height (cm) + 0.17422 x jet resistance (% max) + 0.14092 x velocity (m x min(-1)) -0.12794 x weight (kg)-27.82849, R2 = .82. Our data indicate that similar LTM and UTM cardiorespiratory responses are achievable, and we provide a reasonable estimate of UTM VO2.
Authors:
Nicholas R Greene; Elizabeth S Greene; Aaron F Carbuhn; John S Green; Stephen F Crouse
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Research quarterly for exercise and sport     Volume:  82     ISSN:  0270-1367     ISO Abbreviation:  Res Q Exerc Sport     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-06-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8006373     Medline TA:  Res Q Exerc Sport     Country:  United States    
Other Details:
Languages:  eng     Pagination:  264-73     Citation Subset:  IM    
Affiliation:
Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA. npg6a@virginia.edu
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