Kang Jie, Bushi Jill A, Ratamess Nicholas A, Faigenbaum Avery D, Klei Samantha, Maconi David, Kreckel Michael
Human Performance Laboratory, Department of Health and Exercise Science, The College of New Jersey, Ewing, NJ, USA -
J Sports Med Phys Fitness. 2016 Jul-Aug;56(7-8):834-42. Epub 2015 May 5.
This study was undertaken to evaluate the effectiveness of preworkout whole-body vibration (WBV) in optimizing energy expenditure and substrate oxidation during subsequent aerobic exercise.
Nine male and seven female subjects underwent six sets of 10 body weight squats on a vibration platform with either no WBV (NV), 40-Hz WBV at lower amplitude (1-2 mm) (LV), or 40-Hz WBV at higher amplitude (2-3 mm) (HV) in a randomized order. Each WBV treatment was immediately followed by 20 min of constant-load cycle exercise at an intensity that elicited 65% VO2peak. Oxygen uptake (VO2) and carbon dioxide production (VCO2) were measured continuously during both the WBV treatment and the subsequent exercise. Heart rate (HR) was recorded at the end of each set of body weight squat during the vibration treatment and continuously during the subsequent exercise. Rates of carbohydrate (COX) and fat oxidation (FOX) were calculated based on VO2 and VCO2 using the stoichiometric equations.
During the WBV treatment, VO2 in both l∙min-1 and mL∙kg-1∙min-1 were higher (P<0.05) in HV than NV, while no differences in VO2 were seen between HV and LV and between LV and NV. These metabolic responses occurred similarly in both males and females. During subsequent exercise, VO2 was higher (P<0.05) in HV than NV at 5th and 10th min of exercise. No between-trial differences in HR, COX, and FOX were observed during either the WBV treatment or the subsequent exercise.
40-Hz WBV at higher amplitude augments oxygen uptake, which persists through the early portion of aerobic exercise that commences immediately after WBV. The increased metabolic effect of WBV seems load-dependent as WVB with amplitude smaller than 2 mm did not elevate VO2 significantly. Men and women respond similarly to a vibratory stimulus despite the difference in body mass.
本研究旨在评估运动前全身振动（WBV）对优化后续有氧运动期间能量消耗和底物氧化的有效性。
9名男性和7名女性受试者在振动平台上进行6组每组10次的体重深蹲，随机顺序分别为无WBV（NV）、较低振幅（1 - 2毫米）的40赫兹WBV（LV）或较高振幅（2 - 3毫米）的40赫兹WBV（HV）。每次WBV处理后立即进行20分钟的恒定负荷循环运动，强度为引起65%最大摄氧量（VO2peak）。在WBV处理和随后的运动过程中持续测量摄氧量（VO2）和二氧化碳产生量（VCO2）。在振动处理期间每组体重深蹲结束时记录心率（HR），并在随后的运动过程中持续记录。根据VO2和VCO2使用化学计量方程计算碳水化合物氧化率（COX）和脂肪氧化率（FOX）。
在WBV处理期间，HV组的VO2（以l∙min-1和mL∙kg-1∙min-1计）高于NV组（P<0.05），而HV组与LV组之间以及LV组与NV组之间VO2无差异。这些代谢反应在男性和女性中相似。在随后的运动中，运动第5分钟和第10分钟时，HV组的VO2高于NV组（P<0.05）。在WBV处理或随后的运动过程中，未观察到试验间HR、COX和FOX的差异。
较高振幅的40赫兹WBV可增加摄氧量，这种增加在WBV后立即开始的有氧运动早期阶段持续存在。WBV增加的代谢效应似乎与负荷有关，因为振幅小于2毫米的WBV并未显著提高VO2。尽管体重存在差异，但男性和女性对振动刺激的反应相似。
