Properties of musculus gluteus maximus in above-knee amputees

被引：26

作者：

Burger, H ^{[1
]}

Valencic, V ^{[1
]}

Marincek, C ^{[1
]}

Kogovsek, N ^{[1
]}

机构：

[1] UNIV LJUBLJANA,FAC ELECT & COMP ENGN,LJUBLJANA 61000,SLOVENIA

来源：

CLINICAL BIOMECHANICS | 1996年 / 11卷 / 01期

关键词：

above-knee amputees; gluteus maximus; muscle atrophy; muscle electromyography;

D O I：

10.1016/0268-0033(95)00032-1

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The present study aimed at evaluating possible changes of the gluteus maximus muscle bulk size and in the contracting properties of gluteus maximus in the amputated above-knee limb. Seven male above-knee amputees, with a mean age of 47.4 years volunteered to participate in the present study. Twenty-one healthy subjects with a mean age of 34.0 years served as the control group. Muscle belly displacement was measured by means of a precision electromagnetic sensor dc-dc displacement transducer while performing maximal voluntary isometric contractions; The muscle twitch contraction has been quantified by the latency period (ii), time to peak tension (T2) and the slope of the record. A statistically significant decrease in muscle belly displacement on the amputated side has been observed in comparison with controls and non-amputated side. The latency period on the amputated side was significantly longer and the slope less steep than in the control group. These results indicated atrophied and slower gluteus maximus on the amputated side of above-knee amputees. Revelance-Gluteus maximus is an important hip extensor and its good function is necessary to control above-knee prosthetic limb. Atrophy of gluteus maximus proved by decrease of muscle belly displacement of the amputated limb of above-knee amputees requires programmes of physical therapy directed at strengthening the muscle in order to improve the quality of their gait.

引用

页码：35 / 38

页数：4

共 17 条

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