Validity of the OMNI rating of perceived exertion scale for children and adolescents with cerebral palsy

Fragala-Pinkham, Maria, O'Neil, Margaret E., Lennon, Nancy, Forman, Jeffrey L., & Trost, Stewart G. (2015) Validity of the OMNI rating of perceived exertion scale for children and adolescents with cerebral palsy. Developmental Medicine & Child Neurology, 57(8), pp. 748-53.

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Abstract

Aim

This study evaluated the validity of the OMNI Walk/Run Rating of Perceived Exertion (OMNI-RPE) scores with heart rate and oxygen consumption (VO2) for children and adolescents with cerebral palsy (CP).

Method

Children and adolescents with CP, aged 6 to 18 years and Gross Motor Function Classification System (GMFCS) levels I to III completed a physical activity protocol with seven trials ranging in intensity from sedentary to moderate-to-vigorous. VO2 and heart rate were recorded during the physical activity trials using a portable indirect calorimeter and heart rate monitor. Participants reported OMNI-RPE scores for each trial. Concurrent validity was assessed by calculating the average within-subject correlation between OMNI-RPE ratings and the two physiological indices.

Results

For the correlational analyses, 48 participants (22 males, 26 females; age 12y 6mo, SD 3y 4mo) had valid bivariate data for VO2 and OMNI-RPE, while 40 participants (21 males, 19 females; age 12y 5mo, SD 2y 9mo) had valid bivariate data for heart rate and OMNI-RPE. VO2 (r=0.80; 95% CI 0.66–0.88) and heart rate (r=0.83; 95% CI 0.70–0.91) were moderately to highly correlated to OMNI-RPE scores. No difference was found for the correlation of physiological data and OMNI-RPE scores across the three GMFCS levels. The OMNI-RPE scores increased significantly in a dose-response manner (F6,258=116.1, p<0.001) as exercise intensity increased from sedentary to moderate-to-vigorous.

Interpretation

OMNI-RPE is a clinically feasible option to monitor exercise intensity in ambulatory children and adolescents with CP.

Impact and interest:

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ID Code: 92470
Item Type: Journal Article
Refereed: Yes
Keywords: Adolescent, Cerebral Palsy/*physiopathology, Child, *Diagnostic Self Evaluation, Exercise Test/*standards, Female, Heart Rate/physiology, Humans, Male, Oxygen Consumption/physiology, Physical Exertion/*physiology, Reproducibility of Results, Severity of Illness Index, Surveys and Questionnaires/*standards
DOI: 10.1111/dmcn.12703
ISSN: 0012-1622
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Exercise & Nutrition Sciences
Deposited On: 01 Feb 2016 02:55
Last Modified: 01 Feb 2016 22:33

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