Document Detail

A comparison between computer-controlled and set work rate exercise based on target heart rate.
MedLine Citation:
PMID:  1930084     Owner:  NLM     Status:  MEDLINE    
Good exercise prescriptions provide work rates (WRs) that maintain heart rates (HR) in a target zone and at a percent of maximum metabolic equivalent (%METmax). HR and MET were evaluated from computer-controlled and set WR (constant speed) sessions (20 min at 65% METmax). Computer-controlled WR used a control algorithm to adjust speed and grade to maintain the target HR. The set WR (mean +/- S.D.) HR (139 +/- 8 bpm) was lower (p less than 0.05) than the target (147 +/- 3 bpm) and computer-controlled HRs (153 +/- 5 bpm). The set WR MET (8.6 +/- 2.2) was not different than the target (8.6 +/- 2.2), but both were lower than computer-controlled exercise (9.7 +/- 2.2). Computer-control time in target HR zone (16 +/- 5 min) was significantly (p less than 0.004) greater than set WR exercise (6 +/- 5 min). Computer-controlled WR was significantly better in maintaining target HR and the MET values were not physiologically different than target WRs.
W M Pratt; S F Siconolfi; L Webster; J C Hayes; A D Mazzocca; B A Harris
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Aviation, space, and environmental medicine     Volume:  62     ISSN:  0095-6562     ISO Abbreviation:  Aviat Space Environ Med     Publication Date:  1991 Sep 
Date Detail:
Created Date:  1991-11-18     Completed Date:  1991-11-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7501714     Medline TA:  Aviat Space Environ Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  899-902     Citation Subset:  IM; S    
Exercise Countermeasures Project, NASA Johnson Space Center, Houston, TX 77058.
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MeSH Terms
Exercise / physiology*
Exercise Therapy*
Heart Rate / physiology*
Physical Education and Training
Therapy, Computer-Assisted*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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