Imai Takaki, Nagamatsu Takashi, Yoshizato Yushin, Miyara Kodai, Sumizono Megumi, Nakamura Masatoshi
Department of Rehabilitation Kyushu University of Nursing and Social Welfare.
Faculty of Rehabilitation Sciences Nishi Kyushu University.
Int J Sports Phys Ther. 2024 Aug 2;19(8):1003-1011. doi: 10.26603/001c.121299. eCollection 2024.
Interventions using vibration stimulation have been recognized for their potential for increasing range of motion (ROM) without compromising muscle strength. Handheld vibration massagers can efficiently deliver vibration therapy to the shoulder joint and may be a potential treatment.
To evaluate the effects of vibration massage using a handheld device on the soft tissues of the posterior shoulder joint, particularly on internal rotation (IR) passive ROM and external rotation (ER) muscle strength.
Crossover study design.
A crossover study with a 5-min vibration massage and passive control condition was conducted in healthy male volunteers (mean age 20.5 ± 1.7 years). Vibration massage was applied to the posterior shoulder soft tissues of the dominant arm, with no intervention under control conditions. IR-ROM (vertebral level and in abduction) and strength of the external rotators (isometric and isokinetic) were measured before and immediately after the intervention. Vertebral levels were calculated as a ratio of lengths (ratio decreases with increased mobility). IR-ROM in abduction, the angle was measured. Statistical analysis was performed with two-way repeated measures ANOVA and paired t-test (Bonferroni correction).
Vibration application decreased (improved) vertebral level IR ROM by -4.1% (p < 0.01, d = 0.445) and increased abduction position IR ROM by 11.4° (p < 0.01, d = 0.694). These changes exceeded the 95% confidence interval for the minimum detectable change. By contrast, the control condition produced no changes. IR-ROM (vertebral level and abduction) immediately after the intervention showed significant differences between the control and vibration conditions (p = 0.036, d = 0.273; p = 0.048, d = 0.483, respectively). Muscle strength did not show any interaction, time, or between-condition effects.
A massage using a handheld vibration massager applied to the posterior shoulder soft tissues increased IR-ROM without negatively affecting muscle strength, suggesting its potential use as a means of warming up.
Level 3.
使用振动刺激的干预措施因其在不损害肌肉力量的情况下增加关节活动范围（ROM）的潜力而受到认可。手持式振动按摩器可以有效地为肩关节提供振动治疗，可能是一种潜在的治疗方法。
评估使用手持设备进行振动按摩对肩后关节软组织的影响，特别是对内旋（IR）被动活动范围和外旋（ER）肌肉力量的影响。
交叉研究设计。
在健康男性志愿者（平均年龄20.5±1.7岁）中进行了一项交叉研究，包括5分钟的振动按摩和被动对照条件。振动按摩应用于优势臂的肩后软组织，对照条件下不进行干预。在干预前后测量IR-ROM（椎体水平和外展时）和外旋肌的力量（等长和等速）。椎体水平以长度比计算（比值随活动度增加而降低）。测量外展时IR-ROM的角度。采用双向重复测量方差分析和配对t检验（Bonferroni校正）进行统计分析。
施加振动使椎体水平IR-ROM降低（改善）了-4.1%（p<0.01，d=0.445），外展位置的IR-ROM增加了11.4°（p<0.01，d=0.694）。这些变化超过了最小可检测变化的95%置信区间。相比之下，对照条件下没有变化。干预后立即测量的IR-ROM（椎体水平和外展）在对照和振动条件之间存在显著差异（分别为p=0.036，d=0.273；p=0.048，d=0.483）。肌肉力量未显示任何交互作用、时间或条件间效应。
使用手持式振动按摩器对肩后软组织进行按摩可增加IR-ROM，且不会对肌肉力量产生负面影响，表明其作为热身手段的潜在用途。
3级。
