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| Aerobic-exercise training improves ventilatory efficiency in overweight children |
| Kaufman C, Kelly AS, Kaiser DR, Steinberger J, Dengel DR |
| Pediatric Exercise Science 2007 Feb;19(1):82-92 |
| clinical trial |
| 5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed* |
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The objective of this study was to investigate the effect of an 8-week aerobic-exercise training program on ventilatory threshold and ventilatory efficiency in overweight children. Twenty overweight children (BMI > 85th percentile) performed a graded cycle exercise test at baseline and were then randomly assigned to 8 weeks of stationary cycling (n = 10) or a nonexercising control group (n = 10). Ventilatory variables were examined at ventilatory threshold (VT), which was determined via the Dmax method. After 8 weeks, significant improvements occurred in the exercise group compared with the control group for oxygen uptake at VT (exercise 1.03 +/- 0.13 to 1.32 +/- 0.12 L/min versus control 1.20 +/- 0.10 to 1.11 +/- 0.10 L/min, p < 0.05) and ventilatory equivalent of carbon dioxide (VE/VCO2) at VT (exercise 32.8 +/- 0.80 to 31.0 +/- 0.53 versus control 30.3 +/- 0.88 to 31.7 +/- 0.91, p < 0.05). Aerobic-exercise training might help reverse the decrements in cardiopulmonary function observed over time in overweight children.
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