title: Effects of adiposity and Prader-Willi Syndrome on postexercise heart rate recovery.
abstract: Heart rate recovery (HRR) is an indicator of all-cause mortality in children and adults. We aimed to determine the effect of adiposity and Prader-Willi Syndrome (PWS), a congenital form of obesity, on HRR. Sixteen children of normal weight (NW = body fat % ≤85th percentile, 9.4 ± 1.1 y), 18 children with obesity (OB = body fat % >95th percentile, 9.3 ± 1.1 y), and 11 PWS youth (regardless of body fat %; 11.4 ± 2.5 y) completed peak and submaximal bike tests on separate visits. HRR was recorded one minute following peak and submaximal exercises. All groups displayed similar HRR from peak exercise, while NW (54 ± 16 beats) and OB (50 ± 12 beats) exhibited a significantly faster HRR from submaximal exercise than PWS (37 ± 14 beats). These data suggest that excess adiposity does not influence HRR in children, but other factors such as low cardiovascular fitness and/or autonomic dysfunction might be more influential.
authors.affiliation: Department of Kinesiology, California State University, Fullerton, 800 North State College Boulevard, KHS-236, Fullerton, CA 92831, USA. dcastner@fullerton.edu
authors.forename: Diobel M
authors.initials: DM
authors.lastname: Castner
authors.forename: Daniela A
authors.initials: DA
authors.lastname: Rubin
authors.forename: Daniel A
authors.initials: DA
authors.lastname: Judelson
authors.forename: Andrea M
authors.initials: AM
authors.lastname: Haqq
mesh_terms: D050154:Adiposity; D000704:Analysis of Variance; D016022:Case-Control Studies; D002648:Child; D015444:Exercise; D005080:Exercise Test; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D011218:Prader-Willi Syndrome / Q000175:diagnosis / Q000503:physiopathology*; D020127:Recovery of Function; D013997:Time Factors