Sarcopenia, a progressive loss of muscle mass and function with advancing age, is a prevalent condition among older adults. As most older people are too frail to do intensive exercise and vibration therapy has low risk and ease of participation, it may be more readily accepted by elderly individuals. However, it remains unclear whether vibration therapy would be effective among older adults with sarcopenia. This systematic review and meta-analysis examined the effect of vibration therapy including local vibration therapy and whole-body vibration therapy, for enhancing muscle mass, muscle strength and physical function in older people with sarcopenia. A systematic literature search was conducted in March 2019 in the following 5 electronic databases: PubMed, CINAHL, Embase, PEDro, and the Cochrane Central Register of Controlled Trials, with no restriction of language or the year of publication. Randomized controlled trials and quasi-experimental studies examining effects of vibration therapy on muscle mass, muscle strength or physical function in older adults with sarcopenia were included in this systematic review. Two reviewers independently assessed the methodological quality of the selected studies. Of the 1972 identified studies, seven publications from six studies involving 223 participants were included in this systematic review. Five of them conducted whole-body vibration therapy, while two conducted local vibration therapy. A meta-analysis of randomized controlled studies indicated that muscle strength significantly increased after whole-body vibration therapy (SMD 0.69, 95% CI 0.28 to 1.11, I2 = 0%, P = 0.001) and local vibration therapy (SMD 3.78, 95% CI 2.29 to 5.28, P < 0.001). Physical performance measured by the sit-to-stand test and the timed-up-and-go test were significantly improved after the intervention (SMD -0.79, 95% CI − 1.21 to − 0.37, I2 = 0%, P < 0.001) and SMD -0.83, 95% CI − 1.56 to − 0.11, I2 = 64%, P = 0.02, respectively). Vibration therapy could be a prospective strategy for improving muscle strength and physical performance in older adults with sarcopenia. However, due to the limited number of the included studies, caution is needed when interpreting these results. More well-designed, large sample size studies should be conducted to further explore and validate the benefits of vibration therapy for this population.

中文翻译：

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振动疗法对肌肉减少症老年人肌肉质量、肌肉力量和身体功能的影响：系统评价和荟萃分析。

肌肉减少症是一种随着年龄的增长而逐渐丧失的肌肉质量和功能，是老年人的普遍状况。由于大多数老年人身体虚弱，无法进行剧烈运动，而振动疗法风险低且易于参与，因此可能更容易被老年人接受。然而，目前尚不清楚振动疗法是否对患有肌肉减少症的老年人有效。这项系统回顾和荟萃分析检查了振动疗法（包括局部振动疗法和全身振动疗法）对增强肌肉减少症老年人肌肉质量、肌肉力量和身体功能的效果。2019 年 3 月在以下 5 个电子数据库中进行了系统文献检索：PubMed、CINAHL、Embase、PEDro 和 Cochrane Central Register of Controlled Trials，不受语言或出版年份的限制。本系统评价纳入了检查振动疗法对肌肉减少症老年人肌肉质量、肌肉力量或身体功能影响的随机对照试验和准实验研究。两名评审员独立评估了所选研究的方法学质量。在 1972 项确定的研究中，本系统评价包括来自 6 项研究的 7 篇出版物，涉及 223 名参与者。其中五人进行了全身振动疗法，而两人进行了局部振动疗法。一项随机对照研究的荟萃分析表明，全身振动治疗（SMD 0.69，95% CI 0.28 至 1.11，I2 = 0%，P = 0.001）和局部振动治疗（SMD 3.78，95%）后肌肉力量显着增加CI 2.29 至 5.28，P < 0.001)。干预后通过坐站测试和定时起跑测试测量的体能显着改善（SMD -0.79, 95% CI - 1.21 to - 0.37, I2 = 0%, P < 0.001）和 SMD -0.83, 95% CI - 1.56 至 - 0.11, I2 = 64%, P = 0.02)。振动疗法可能是改善患有肌肉减少症的老年人肌肉力量和身体机能的一种前瞻性策略。然而，由于纳入研究的数量有限，在解释这些结果时需要谨慎。应该进行更精心设计的大样本研究，以进一步探索和验证振动疗法对这一人群的益处。21 至 - 0.37，I2 = 0%，P < 0.001）和 SMD -0.83，95% CI - 1.56 至 - 0.11，I2 = 64%，P = 0.02）。振动疗法可能是改善患有肌肉减少症的老年人肌肉力量和身体机能的一种前瞻性策略。然而，由于纳入研究的数量有限，在解释这些结果时需要谨慎。应该进行更精心设计的大样本研究，以进一步探索和验证振动疗法对这一人群的益处。21 至 - 0.37，I2 = 0%，P < 0.001）和 SMD -0.83，95% CI - 1.56 至 - 0.11，I2 = 64%，P = 0.02）。振动疗法可能是改善患有肌肉减少症的老年人肌肉力量和身体机能的一种前瞻性策略。然而，由于纳入研究的数量有限，在解释这些结果时需要谨慎。应该进行更精心设计的大样本研究，以进一步探索和验证振动疗法对这一人群的益处。解释这些结果时需要谨慎。应该进行更精心设计的大样本研究，以进一步探索和验证振动疗法对这一人群的益处。解释这些结果时需要谨慎。应该进行更精心设计的大样本研究，以进一步探索和验证振动疗法对这一人群的益处。