HUMAN SKELETAL-MUSCLE FUNCTION - DESCRIPTION OF TESTS AND NORMAL VALUES
HUMAN SKELETAL-MUSCLE FUNCTION - DESCRIPTION OF TESTS AND NORMAL VALUES
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DOI：
10.1042/cs0520283
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发表时间：
1977-01-01
期刊：
影响因子：
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通讯作者：
JONES, DA
中科院分区：
文献类型：
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作者：
EDWARDS, RHT;YOUNG, A;JONES, DA
在最大自主收缩期间以及当肌肉的实质部分经由表面电极电刺激时，研究了由股四头肌的等长收缩产生的力。在正常儿童和成人中，股四头肌的最大自主收缩力与体重成正比。在30 Hz和100 Hz的18 s刺激期间，根据力/频率曲线、松弛速度和力损失率来描述股四头肌的功能。经尺神经刺激拇内收肌的功能特点与股四头肌基本相似。这两块肌肉的功能研究是互补的，因为股四头肌适合于其结构和化学的针吸活检研究，而拇收肌更适合于电生理研究。
The force produced by isometric contractions of the quadriceps muscle was studied during maximal voluntary contractions and when a substantial part of the muscle was electrically stimulated via surface electrodes. In normal children and adults, the force of a maximal voluntary contraction of the quadriceps was proportional to body weight. The function of the quadriceps was described in terms of the force/frequency curve, speed of relaxation and the rate of loss of force during 18 s stimulation at 30 Hz and 100 Hz. The functional characteristics of adductor pollicis when stimulated via the ulnar nerve were essentially similar to those of the quadriceps. Studies of the function of these 2 muscles were complementary since quadriceps femoris was amenable to needle biopsy investigations of its structure and chemistry, whereas adductor pollicis was more suitable for electrophysiological studies.