Stochastic resonance whole body vibration increases perceived muscle relaxation but not cardiovascular activation:A randomized controlled trial

• 作者: Achim Elfering Christian Burger Lorenz Radlinger Volker Schade
• 来源期刊: 世界骨科杂志
• 学科: 医学
• 关键词: MUSCULOSKELETAL system Prevention Blood pressure Heart rate Low back PAIN
• 年，卷（期）: 2016,（11）
• 页码范围: 758-765
• 页数: 8页
• 分类号: R

摘要

AIM To investigate the acute effects of stochastic resonance whole body vibration(SR-WBV),including muscle relaxation and cardiovascular activation.METHODS Sixty-four healthy students participated.The participants were randomly assigned to sham SR-WBV training at a low intensity(1.5 Hz)or a verum SR-WBV training at a higher intensity(5 Hz).Systolic blood pressure(SBP),diastolic blood pressure(DBP),heart rate(HR)and selfreported muscle relaxation were assessed before and immediately after SR-WBV.RESULTS Two factorial analyses of variance(ANOVA)showed a significant interaction between pre-vs post-SR-WBV measurements and SR-WBV conditions for muscle relaxation in the neck and back[F(1,55)=3.35,P=0.048,η2=0.07].Muscle relaxation in the neck and back increased in verum SR-WBV,but not in sham SR-WBV.No significant changes between pre-and post-training levels of SBD,DBD and HR were observed either in sham or verum SR-WBV conditions.With verum SR-WBV,improved muscle relaxation was the most significant in participants who reported the experience of back,neck or shoulder pain more than once a month(P<0.05).CONCLUSION A single session of SR-WBV increased muscle relaxation in young healthy individuals,while cardiovascular load was low.An increase in musculoskeletal relaxation in the neck and back is a potential mediator of pain reduction in preventive worksite SR-WBV trials.