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Children's omni scale of perceived exertion : validation with obese adolescent males
Author
Cai, Shujuan
Supervisor
Balasekaran, Govindasamy
Abstract
The purpose of this study was to validate the Children's OMNI Scale of Perceived Exertion (Category 0 to 10) using obese adolescent males. The cohort covered 18 obese, clinically normal adolescent males, 12 to14 years of age. A stratified sample, perceptual estimation paradigm using a single multi-stage cycle ergometer test utilizing a submaximal till exhaustion protocol was used. Heart rate (HR; beats-min.'), oxygen uptake (~02rnl*min-')b, ody weight relative oxygen uptake (V02 ml.kg-'.min-l) and WE for the overall body (WE-0), legs (WE-L), and chest @PE-C) were determined at the end of each continuously administered 3-min power outputs (PO) test stage. After completion of 4 submaximal PO stages (25,50,75, and 100W), subjects cycled to exhaustion. Stage 7 (175W) was the highest PO stage completed. RPE responses for the 7 stages ranged from 0 to 10. Simple linear regression was used to separately regress HR, ~0zml-min.' and V02 ml-kg-'-min.' against WE-0, RPE-L and WE-C. Data from the first 4 stages of submaximal exercise were analyzed using ANOVA with repeated measures to determine differences between WE-0, WE-L and WE-C at each PO stage and differences of each WE over the different PO stages. Linear regression analysis demonstrated that WE-0, WE-L and WE-C distributed as positive linear functions of V02 ml-min.', V02 ml.kg-'.min.', and HR. Linear regression coefficients for WE-0, WE-L and WE-C ranged from 0.974 to 0.996. All regression functions were statistically significant (significance levels varied between P < 0.05 and P < 0.01). ANOVA with repeated measures revealed no significant differences between WE-0, WE-C and WE-L at each PO stage and individual WEs were significantly different (P < 0.001) at every PO stage. The Children's OMNI Scale of Perceived Exertion is valid for use with 12-14 year-old obese adolescent males. Obese adolescent males, 12-14 years old, do not differentially rate perceived exertion.
Date Issued
2004
Call Number
GV436 Cai
Date Submitted
2004