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ERIC Number: EJ1169205
Record Type: Journal
Publication Date: 2018
Pages: 9
Abstractor: As Provided
ISSN: ISSN-0270-1367
Recovery Responses to Maximal Exercise in Healthy-Weight Children and Children with Obesity
Easley, Elizabeth A.; Black, W. Scott; Bailey, Alison L.; Lennie, Terry A.; Sims, Wilma J.; Clasey, Jody L.
Research Quarterly for Exercise and Sport, v89 n1 p38-46 2018
Purpose: The purpose of this study was to examine differences in heart rate recovery (HRRec) and oxygen consumption recovery (VO2 recovery) between young healthy-weight children and children with obesity following a maximal volitional graded exercise test (GXTmax). Method: Twenty healthy-weight children and 13 children with obesity completed body composition testing and performed a GXTmax. Immediately after the GXTmax, HRRec and VO[subscript 2] recovery were measured each minute for 5 consecutive minutes. Results: There were no statistically significant group differences in HRRec for the 5 min following maximal exercise, Wilks's Lambda = 0.885, F(4, 28) = 0.911, p = 0.471, between the healthy-weight children and children with obesity despite statistically significant differences in body fat percentage (BF%; healthy-weight children, 18.5 ± 6.1%; children with obesity, 41.1 ± 6.9%, p < 0.001) and aerobic capacity relative to body mass (VO[subscript 2] peak; healthy-weight children, 46.8 ± 8.2 mL/kg/min; children with obesity, 31.9 ± 4.7 mL/kg/min, p < 0.001). There were statistically significant differences in VO[subscript 2] recovery for the 5 min following exercise, Wilks's Lambda = 0.676, F(4, 26) = 3.117, p = 0.032. There were no statistically significant correlations between HRRec and body mass index (BMI), BF%, VO[subscript 2] peak, or physical activity. Conclusions: In a healthy pediatric population, obesity alone does not seem to significantly impact HRRec, and because HRRec was not related to obesity status, BMI, or BF%, it should not be used as the sole indicator of aerobic capacity or health status in children. Using more than one recovery variable (i.e., HRRec and VO[subscript 2] recovery) may provide greater insight into cardiorespiratory fitness in this population.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A