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The relationship among HRpeak, RERpeak, and VO2peak during treadmill testing in girls.
MedLine Citation:
PMID:  22276410     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Clear criteria for maximal oxygen consumption (VO2max) determination in youth are not available, and no studies have examined this issue in girls. Our purpose was to determine whether different peak heart rate (HRpeak) and peak respiratory exchange ratio (RERpeak) cut points affect girls' (N = 453; M age = 13.3 years, SD = .1) VO2max during a maximal treadmill test. A multivariate analysis of variance revealed VO2max (ml kg(-1) min(-1) differed significantly among HRpeak, 180-189 b min(-1) = 34 (SD = .8), 190-194 bmin(-1) = 35 (SD = .9), 195-199 b min(-1) = 38 (SD = .8), 200-204 b min(-1) = 40 ml kg1 x min(-1) (SD = .8), and > or = 205 bmin(-1) = 42 ml kg1 x min(-1) (SD = .7) but not RERpeak. In studies where evidence of a VO2 plateau was examined, peak oxygen consumption (VO2peak) did not differ between plateau and no-plateau groups. Although our results suggest the association between lower VO2peak and lower peak heart rate is a true cardiovascular limit to aerobic energy production, we cannot rule out participant effort.
Authors:
Karissa Peyer; James M Pivarnik; Dawn Podulka Coe
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Research quarterly for exercise and sport     Volume:  82     ISSN:  0270-1367     ISO Abbreviation:  Res Q Exerc Sport     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2012-01-26     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:  685-92     Citation Subset:  IM    
Affiliation:
Department of Kinesiology, Michigan State University, East Lansing 48824, USA.
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