全身振动训练与股四头肌力量训练对膝骨关节炎患者身体功能和神经肌肉功能的比较：一项随机临床试验。
Comparison of whole-body vibration training and quadriceps strength training on physical function and neuromuscular function of individuals with knee osteoarthritis: A randomised clinical trial.
作者信息
Lai Zhangqi, Lee Seullee, Chen Yiyang, Wang Lin
机构信息
School of Kinesiology, Shanghai University of Sport, Shanghai, China.
Department of Kinesiology and Physical Education, McGill University, Montreal, Canada.
出版信息
J Exerc Sci Fit. 2021 Jul;19(3):150-157. doi: 10.1016/j.jesf.2021.01.003. Epub 2021 Feb 2.
BACKGROUND
Knee osteoarthritis (KOA) is one of the leading causes of global disability, which causes knee pain, stiffness and swelling. Impaired neuromuscular function may cause joint instability, alignment changes and knee stress, which leads to the progression of KOA. Whole-body vibration (WBV) training is considered to improve pain and functional mobility effectively. However, few studies have investigated the therapeutic effect of WBV on neuromuscular function in KOA.
MATERIAL AND METHODS
A single-blinded, randomised, controlled trial was performed on 81 participants diagnosed with KOA. The participants were randomised into three groups: (1) WBV group, in which participants performed strength training (ST) with vibration exposure for 8 weeks; (2) ST group, in which participants performed ST without vibration for 8 weeks; and (3) health education (HE) group, in which participants received a HE for 8 weeks. The visual analogue scale for knee pain, isokinetic muscle strength test, proprioception test, Timed Up and Go test (TUG) and 6-min Walk Distance test (6MWD) were performed before and after the interventions.
RESULTS
No significant difference was found on pain, proprioception, TUG and 6MWD. A significant interaction effect was found in isokinetic muscle strength between groups. Further analysis showed that compared with the HE group, the WBV group exhibited significantly greater improvement in isokinetic muscle strength (peak torque [PT] of extensors, p < 0.01, 95% CI = 0.11-0.33 Nm/kg; PT of flexors, p = 0.01, 95% CI = 0.02-0.19 Nm/kg; peak work [PW] of extensors, p < 0.01, 95% CI = 0.12-0.75 W/kg). In addition, compared with the ST group, the muscle strength of the WBV group (PT of extensors, p < 0.01, 95% CI = 0.10-0.32 Nm/kg; PW of extensors, p < 0.01, 95% CI = 0.09-0.71 W/kg) improved significantly.
CONCLUSION
Our findings suggested that adding WBV training to ST might benefit muscle strength around the knee joint in patients with KOA.
背景
膝关节骨关节炎（KOA）是全球残疾的主要原因之一，可导致膝关节疼痛、僵硬和肿胀。神经肌肉功能受损可能导致关节不稳定、对线改变和膝关节压力，从而导致KOA病情进展。全身振动（WBV）训练被认为能有效改善疼痛和功能活动能力。然而，很少有研究探讨WBV对KOA患者神经肌肉功能的治疗效果。
材料与方法
对81名被诊断为KOA的参与者进行了一项单盲、随机对照试验。参与者被随机分为三组：（1）WBV组，参与者进行8周的带振动暴露的力量训练（ST）；（2）ST组，参与者进行8周的无振动ST；（3）健康教育（HE）组，参与者接受8周的HE。在干预前后进行膝关节疼痛视觉模拟量表、等速肌力测试、本体感觉测试、计时起立行走测试（TUG）和6分钟步行距离测试（6MWD）。
结果
在疼痛、本体感觉、TUG和6MWD方面未发现显著差异。在组间等速肌力方面发现了显著的交互作用。进一步分析表明，与HE组相比，WBV组在等速肌力方面有显著更大的改善（伸肌峰值扭矩[PT]，p<0.01，95%CI=0.11-0.33 Nm/kg；屈肌PT，p=0.01，95%CI=0.02-0.19 Nm/kg；伸肌峰值功[PW]，p<0.01，95%CI=0.12-0.75 W/kg）。此外，与ST组相比，WBV组的肌肉力量（伸肌PT，p<0.01，95%CI=0.10-0.32 Nm/kg；伸肌PW，p<0.01，95%CI=0.09-0.71 W/kg）有显著改善。
结论
我们的研究结果表明，在ST中加入WBV训练可能有益于KOA患者膝关节周围的肌肉力量。
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