老年男性和女性与年龄相关的特定部位的大腿肌肉损失和之字形行走表现。

Takashi Abe, J P Loenneke, R S Thiebaud, M Ogawa, N Mitsukawa
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引用次数: 6

摘要

为了研究大腿特定部位肌肉损失、肌肉质量和之字形行走表现之间的关系,40名男性和41名女性,年龄在65-79岁之间,通过超声测量了身体前后九个部位的肌肉厚度(MTH)。骨骼肌质量(SM)由超声导出的预测方程估计。使用超声测量大腿前后部的MTH (AP-MTH比)计算特定部位的大腿肌肉减少症。测量之字形行走时间(ZWT)和膝关节最大等距伸直(KE)和屈曲(KF)扭矩。计算肌肉质量(扭矩/大腿SM)和膝关节强度指数(扭矩/体重)。SM指数与ZWT之间无显著相关。而AP-MTH比值与ZWT在男性(r = -0.335)和女性(r = -0.309)中呈负相关(P < 0.05)。两性间ZWT与ke强度指数呈负相关(P < 0.05)(男性,r = -0.328;女性,r = -0.372)。同样,ZWT与女性的KF-strength指数(r = -0.497)和肌肉质量(r = -0.322)相关,但与男性无关。在调整年龄、身高和体重后,男性AP-MTH与ZWT呈负相关(r = -0.325),女性AP-MTH与ZWT呈负相关(r = -0.263)。在老年男性和女性中,之字形行走表现可能与部位特异性大腿肌肉减少症有关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Age-related site-specific muscle loss in the thigh and zigzag walking performance in older men and women.

To investigate the relationships between site-specific muscle loss in the thigh, muscle quality and zigzag walking performance, 40 men and 41 women aged 65-79 years had muscle thickness (MTH) measured by ultrasound at nine sites on the anterior and posterior aspects of the body. Skeletal muscle mass (SM) was estimated from an ultrasound-derived prediction equation. Site-specific thigh sarcopenia was calculated using ultrasound-measured MTH at the anterior/posterior aspects of the thigh (AP-MTH ratio). Zigzag walking time (ZWT) and maximum isometric knee extension (KE) and flexion (KF) torques were measured. Muscle quality (torque/thigh SM) and knee joint strength index (torque/body mass) were calculated. There were no significant correlations between SM index and ZWT. However, AP-MTH ratio was inversely correlated (P < 0.05) to ZWT in men (r = -0.335) and women (r = -0.309). ZWT was also inversely correlated (P < 0.05) to KE-strength index in both sexes (men, r = -0.328; women, r = -0.372). Similarly, ZWT was correlated to KF-strength index (r = -0.497) and muscle quality (r = -0.322) in women, but not in men. After adjusting for age, height and body mass, AP-MTH ratio was inversely correlated to ZWT in men (r = -0.325) and tended to be correlated to ZWT in women (r = -0.263). Zigzag walking performance may be associated with site-specific thigh sarcopenia in older men and women.

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来源期刊
Acta physiologica Hungarica
Acta physiologica Hungarica 医学-生理学
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