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Effects of Acute Whole-Body Vibration Practice on Maximal Fat Oxidation in Adult Obese Males: A Pilot Study.
Emerenziani, GP, Ferrari, D, Fittipaldi, S, Bimonte, VM, Marocco, C, Greco, EA, Perroni, F, Migliaccio, S, Lenzi, A, Baldari, C, et al
Obesity facts. 2020;(2):117-129
Abstract
OBJECTIVE Whole-body vibration (WBV) training has been established as a useful method to improve physical fitness in obese individuals. However, the effects of WBV exercise on maximal fat oxidation (MFO) have not been examined in obese subjects yet. METHOD MFO was eval-uated during a cardiopulmonary exercise test (CPET) on a treadmill in 12 adult obese males (BMI = 34.9 ± 3.3 kg/m2) after three different warm-up conditions: static half squat plus WBV (HSV), static half squat without WBV (HSWV), and rest (REST). Cortisol levels were evaluated before and after the warm-up, and 1 min (T1), 10 min (T10), and 30 min (T30) of the recovery phase. RESULTS MFO was significantly higher in HSV (p = 0.013; 569.4 ± 117.9 mg/min) and HSWV (p = 0.033; 563.8 ± 142.9 mg/min) than REST (445.5 ± 117.9 mg/min). Cortisol concentrations at T1 were significantly higher in HSV (p = 0.023) and HSWV (p = 0.015) than REST. Moreover, cortisol concentrations were significantly lower at T30 than T1 in HSWV (p = 0.04). No differences were found between T30 and T1 in HSV. CONCLUSIONS Active warm-up increases MFO; however, vibration stimulus during half squatting does not increase MFO during a CPET in obese subjects. The lack of significant differences of cortisol concentrations in HSV during the recovery phase might suggest a long-term effect of WBV on the endocrine system.