Severino Gregory, Sanchez-Gonzalez Marcos, Walters-Edwards Michelle, Nordvall Michael, Chernykh Oksana, Adames Jason, Wong Alexei
J Aging Phys Act. 2017 Jul;25(3):395-401. doi: 10.1123/japa.2016-0087. Epub 2017 Jun 28.
The present study examined the effects of a 6-week whole-body vibration training (WBVT) regimen on heart rate variability (HRV) and body composition in obese Hispanic postmenopausal women. Participants were randomly assigned to either WBVT (n = 13) or a nonexercising control group (n = 14). HRV and body composition were measured before and after 6 weeks. There was a significant group by time interaction (P < .05) for heart rate, sympathovagal balance, and body fat percentage (BF%) such that all significantly decreased (P < .05); and R-R intervals significantly increased (P < .05) following WBVT compared to no changes after control. The changes in sympathovagal balance were correlated with changes in BF% (r = .63, P < .05). Our findings indicate that WBVT improves HRV and BF% in obese Hispanic postmenopausal women. The improvement in BF% partially explained the decrease in sympathovagal balance. Since obese and older individuals are at increased risk of developing cardiovascular diseases, they could potentially benefit from WBVT.
本研究考察了为期6周的全身振动训练（WBVT）方案对肥胖西班牙裔绝经后女性心率变异性（HRV）和身体成分的影响。参与者被随机分为WBVT组（n = 13）或非运动对照组（n = 14）。在6周前后测量HRV和身体成分。心率、交感神经-迷走神经平衡和体脂百分比（BF%）存在显著的组间时间交互作用（P < 0.05），即所有指标均显著下降（P < 0.05）；与对照组无变化相比，WBVT后R-R间期显著增加（P < 0.05）。交感神经-迷走神经平衡的变化与BF%的变化相关（r = 0.63，P < 0.05）。我们的研究结果表明，WBVT可改善肥胖西班牙裔绝经后女性的HRV和BF%。BF%的改善部分解释了交感神经-迷走神经平衡的下降。由于肥胖和老年人患心血管疾病的风险增加，他们可能会从WBVT中获益。
