Document Detail

Within- and between-day repeatability and variability in children's physiological responses during submaximal treadmill exercise.
MedLine Citation:
PMID:  19791644     Owner:  NLM     Status:  In-Process    
The purpose of this study was to verify within- and between-day repeatability and variability in children's oxygen uptake (VO2), gross economy (GE; VO2 divided by speed) and heart rate (HR) during treadmill walking based on self-selected speed (SS). Fourteen children (10.1 +/- 1.4 years) undertook three testing sessions over 2 days in which four walking speeds, including SS were tested. Within- and between-day repeatability were assessed using the Bland and Altman method, and coefficients of variability (CV) were determined for each child across exercise bouts and averaged to obtain a mean group CV value for VO2, GE, and HR per speed. Repeated measures analysis of variance showed no statistically significant differences in within- or between-day CV for VO2, GE, or HR at any speed. Repeatability within- and between-day for VO2, GE, and HR for all speeds was verified. These results suggest that submaximal VO2 during treadmill walking is stable and reproducible at a range of speeds based on children's SS.
Paulo R S Amorim; Nuala Mary Byrne; Andrew P Hills
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Research quarterly for exercise and sport     Volume:  80     ISSN:  0270-1367     ISO Abbreviation:  Res Q Exerc Sport     Publication Date:  2009 Sep 
Date Detail:
Created Date:  2009-10-01     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:  575-82     Citation Subset:  IM    
Physical Education Department, Viçosa Federal University, Brazil.
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