Prediction of maximal heart rate in individuals with mental retardation
- 1 October 2001
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Medicine & Science in Sports & Exercise
- Vol. 33 (10), 1655-1660
- https://doi.org/10.1097/00005768-200110000-00007
Abstract
FERNHALL, B., J. A. MCCUBBIN, K. H. PITETTI, P. RINTALA, J. H. RIMMER, A. L. MILLAR, and A. DE SILVA. Prediction of maximal heart rate in individuals with mental retardation. Med. Sci. Sports Exerc., Vol. 33, No. 10, 2001, pp. 1655–1660. Purpose: It is well known that individuals with mental retardation (MR), especially those with Down syndrome (DS), have low maximal heart rates (MHR). We evaluated the ability to predict MHR in individuals with MR and DS in comparison with persons without MR. Methods: Subjects completed a maximal exercise test on the treadmill with metabolic and HR measurements. Stepwise multiple regression was used to develop prediction equations for subjects with MR (N = 276; 97 with DS) and without (N = 296) MR, ranging in age from 9–46 yr. Results: Subjects with MR exhibited significantly lower MHR (177 vs 185 beats·min−1) and VO2peak (33.8 vs 35.6 mL·kg−1·min−1). In subjects with MR, age was a poor predictor of MHR, Y = 189 − 0.59 (age) (R = 0.30, SEE = 13.8 beats·min−1;P −1Keywords
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