Document Detail


Cardiorespiratory responses to exercises of equal relative intensity distributed between the upper and lower body.
MedLine Citation:
PMID:  9663955     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The principles underlying the cardiorespiratory responses to upper body versus lower body exercise remain unclear. We explored the hypothesis that workloads of the same percentage of maximum strength for a particular part of the body might elicit similar cardiovascular responses. Twelve trained female university rowers (mean +/- s: age, 22.8 +/- 1.3 years; body mass, 66.9 +/- 1.8 kg; height, 169 +/- 6 cm; body fat, 18 +/- 2%; HRpeak, 190 +/- 3 beats min(-1); VO2 peak, 50.7 +/- 2.6 ml kg(-1) min(-1)) performed four 12 min exercise trials on a rowing ergometer. Arm rowing, leg extension and arm rowing + leg extension workloads were set at 20% of the mean of their respective three-repetition maximum (3-RM). The combination of arm rowing and leg extension was also performed in a reciprocal workload fashion; that is, the arm workload was 20% of the mean 3-RM for leg extension, and the leg extension workload was 20% of the mean 3-RM for arm rowing. Analysis of variance and Tukey HSD showed that, although the power output for leg extension was 144% higher than for arm rowing, the mean VO2, VE and heart rate values were not significantly different between exercise modes. Oxygen uptake for reciprocal arm rowing + leg extension, with the arms performing 71% of the total power output, was not significantly different from non-reciprocal arm rowing + leg extension; however, the VE and heart rate values were higher. Our results suggest that, during submaximal exercise, cardiorespiratory responses to upper body exercise do not differ significantly from those to lower body exercise, so long as the upper and lower body workloads are set at an equal relative strength level.
Authors:
E W Faria; I E Faria
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of sports sciences     Volume:  16     ISSN:  0264-0414     ISO Abbreviation:  J Sports Sci     Publication Date:  1998 May 
Date Detail:
Created Date:  1998-09-09     Completed Date:  1998-09-09     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8405364     Medline TA:  J Sports Sci     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  309-15     Citation Subset:  IM; S    
Affiliation:
Department of Health & Physical Education, California State University at Sacramento, 95819, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Arm / physiology
Exercise / physiology*
Female
Heart / physiology*
Heart Rate
Humans
Leg / physiology
Oxygen Consumption
Respiration / physiology*

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