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Reliability and validity of the Borg and OMNI rating of perceived exertion scales in adolescent girls

2002; Lippincott Williams & Wilkins; Volume: 34; Issue: 12 Linguagem: Inglês

10.1097/00005768-200212000-00029

1530-0315

Karin A. Pfeiffer, James M. Pivarnik, Christopher J. Womack, Mathew J. Reeves, Robert M. Malina,

Children's Physical and Motor Development

PFEIFFER, K. A., J. M. PIVARNIK, C. J. WOMACK, M. J. REEVES, and R. M. MALINA. Reliability and validity of the Borg and OMNI rating of perceived exertion scales in adolescent girls. Med. Sci. Sports Exerc., Vol. 34, No. 12, pp. 2057–2061, 2002. Purpose To examine the reliability and validity of the Borg and OMNI rating of perceived exertion (RPE) scales in adolescent girls during treadmill exercise. Methods Adolescent girls (N = 57, age = 15.3 ± 1.5 yr) were randomly assigned to use an RPE scale (Borg or OMNI) during one of three treadmill submaximal exercise conditions (walking, walking uphill, or jogging). After RPE assessment, exercise intensity was increased until participants achieved volitional exhaustion (V̇O2max). Expired respiratory gases and heart rate (HR) were measured continuously during exercise. Reliability of the RPE scales was assessed using ANOVA (intraclass) and Spearman-Brown prophecy formula (single trial) measures. Validity estimates were calculated using Pearson Product Moment correlations, with % HRmax and % V̇O2max as criterion measures. Results Intraclass and single-trial reliability estimates were higher for the OMNI (rxx = 0.95 and rkk = 0.91, respectively) compared with the Borg (rxx = 0.78 and rkk = 0.64, respectively) RPE scale. Validity estimates were also higher for the OMNI scale compared with the Borg scale. Validity coefficients (rxy) for %HRmax and %V̇O2max comparisons were 0.86 and 0.89, respectively, for the OMNI, compared with 0.66 and 0.70, respectively, for the Borg. Conclusion The OMNI cycle pictorial scale was found to be reliable and valid for use with adolescent girls. It also appears to be more reliable and valid than the Borg scale for use in this population during treadmill exercise.