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Weight Loss Associated with Exercise Training Restores Ventilatory Efficiency in Obese Children
International Journal of Sports Medicine, 10/30/09

Prado DM et al. – The purpose of this study was to test the hypothesis that in obese children: 1) Ventilatory efficiency (VentE) is decreased during graded exercise; and 2) Weight loss through diet alone (D) improves VentE, and 3) diet associated with exercise training (DET) leads to greater improvement in VentE than by D...Obese children showed lower VO2 peak and lower VentE than controls. After interventions, all obese children reduced body weight. D group did not improve in terms of VO2 peak or VentE. In contrast, the DET group showed increased VO2 peak and improved VentE. VentE is decreased in obese children, where weight loss by means of DET, but not D alone, improves VentE and cardiorespiratory fitness during graded exercise.

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