Usefulness of Muscle Stiffness Evaluated by Ultrasonography for Detecting Muscle Change Related to Contracture in Frail Older Adults.

IF 1.8 Q4 GERIATRICS & GERONTOLOGY

Canadian Geriatrics Journal Pub Date : 2025-09-03 eCollection Date: 2025-09-01 DOI:10.5770/cgj.28.827

Koichi Nakagawa, Hideki Kataoka, Rinko Inoue, Kyo Goto, Junichiro Yamashita, Yuki Nishi, Yuichiro Honda, Junya Sakamoto, Tomoki Origuchi, Minoru Okita

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Abstract

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, p < .001) and in zero-abduction (ρ = 0.41, p < .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.

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超声评估肌肉僵硬度对检测老年人肌肉挛缩相关变化的有用性。

背景：超声检查可通过回声强度（EI）和应变比（SR）分别判断肌肉质量和僵硬程度。EI和SR受衰老、脆弱和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肌肉EI和SR的影响，并确定了一种有效的测量方法来反映虚弱老年人收缩相关的肌肉变化。方法：本研究采用横断面设计。22名健康青年（青年组）、22名非体弱老年人（非体弱组）和22名体弱老年人（体弱组）参与本研究。测量髋外展的运动范围（ROM），零外展位和全外展位长内收肌的EI和SR。为了研究衰老和虚弱的影响，使用了Kruskal-Wallis检验，然后使用了post-hoc 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，我们使用了Spearman相关检验。结果：体弱组全外展ROM和SR明显低于其他组，非体弱组明显低于年轻组。完全外展（ρ = 0.73, p < 0.001）和零外展（ρ = 0.41, p < 0.001）的SR分别与ROM有较强和中度相关性。结论：完全外展的SR受虚弱和衰老的影响，可用于评估虚弱的老年人与挛缩相关的肌肉僵硬。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Canadian Geriatrics Journal Nursing-Gerontology

CiteScore

5.20

自引率

0.00%

发文量

期刊介绍： The Canadian Geriatrics Journal (CGJ) is a peer-reviewed publication that is a home for innovative aging research of a high quality aimed at improving the health and the care provided to older persons residing in Canada and outside our borders. While we gratefully accept submissions from researchers outside our country, we are committed to encouraging aging research by Canadians. The CGJ is targeted to family physicians with training or an interest in the care of older persons, specialists in geriatric medicine, geriatric psychiatrists, and members of other health disciplines with a focus on gerontology.