超声评估肌肉僵硬对检测体弱老年人与挛缩相关肌肉变化的有用性。
Usefulness of Muscle Stiffness Evaluated by Ultrasonography for Detecting Muscle Change Related to Contracture in Frail Older Adults.
作者信息
Nakagawa Koichi, Kataoka Hideki, Inoue Rinko, Goto Kyo, Yamashita Junichiro, Nishi Yuki, Honda Yuichiro, Sakamoto Junya, Origuchi Tomoki, Okita Minoru
机构信息
Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Department of Rehabilitation, Nagasaki Memorial Hospital, Nagasaki, Japan.
出版信息
Can Geriatr J. 2025 Sep 3;28(3):212-220. doi: 10.5770/cgj.28.827. eCollection 2025 Sep.
BACKGROUND
Ultrasonography can be used to evaluate the echo intensity (EI) and strain ratio (SR) to identify muscle quality and stiffness, respectively. EI and SR are affected by aging, frailty, and joint angle positions. We investigated the effects of aging and frailty on muscle EI and SR at different joint angle positions, and identified a useful measurement method to reflect muscle changes related to contractures in frail older adults.
METHODS
This study had a cross-sectional design. Twenty-two healthy young adults (young group), 22 non-frail older adults (non-frail group), and 22 frail older adults (frail group) participated in this study. The range of motion (ROM) of hip abduction, EI, and SR of the adductor longus in the zero- and full-abduction positions were measured. To investigate the effects of aging and frailty, the Kruskal-Wallis test, followed by the post-hoc Steel-Dwass test, was used. In addition, to confirm whether EI and SR in each position were useful for assessing contracture, Spearman's correlation test was used.
RESULTS
ROM and SR in full-abduction were significantly lower in the frail group than in the other groups and lower in the non-frail group than in the young group. The SR in full-abduction (ρ = 0.73, < .001) and in zero-abduction (ρ = 0.41, < .001) showed strong and moderate correlation with the ROM, respectively.
CONCLUSIONS
SR in full-abduction is affected by both frailty and aging and is useful for evaluating muscle stiffness related to contracture in frail older adults.
背景
超声检查可用于评估回声强度（EI）和应变率（SR），分别以识别肌肉质量和僵硬程度。EI和SR会受到衰老、虚弱以及关节角度位置的影响。我们研究了衰老和虚弱对不同关节角度位置下肌肉EI和SR的影响，并确定了一种有用的测量方法，以反映体弱老年人中与挛缩相关的肌肉变化。
方法
本研究采用横断面设计。22名健康年轻成年人（年轻组）、22名非体弱老年人（非体弱组）和22名体弱老年人（体弱组）参与了本研究。测量了髋关节外展的活动范围（ROM）、内收长肌在零外展和完全外展位置的EI和SR。为了研究衰老和虚弱的影响，使用了Kruskal-Wallis检验，随后进行事后Steel-Dwass检验。此外，为了确认每个位置的EI和SR是否有助于评估挛缩，使用了Spearman相关性检验。
结果
体弱组完全外展时的ROM和SR显著低于其他组，非体弱组低于年轻组。完全外展时的SR（ρ = 0.73，P <.001）和零外展时的SR（ρ = 0.41，P <.001）分别与ROM呈强和中度相关性。
结论
完全外展时的SR受虚弱和衰老的影响，有助于评估体弱老年人中与挛缩相关的肌肉僵硬程度。
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