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Rehabilitation Practice and Science

Translated Title

正常人之膝伸肌與屈肌群之肌力研究

Abstract

Isokinetic exercise is performed at a constant speed throughout the range of motion. As the muscle is appiied by force, it encounters a proportional opposing resistance so as to keep the speed of movement eonslanl. Where the muscle is tronger, the resistance increases. The distinct advantage of isokinetic exercise is that it permits the muscle work fully throughout its range of motion.There are many advantages for isokinetic test. They inciude safty, efficiency, accomodating resistance, accuracy and reliability of test data, permanent objective recording and accomodaiion to pain.Thirty gentlemen and twenty ladies arc tested by LIDOACT in our study. The purposes of this study are to master the procedure and to set up the normai data of knee extensor and flexor in normal people. There arc many factors affecting the results-They include warm up, positioning, body fixation,hand grasp and motivation. We can dectect the error from the fatigue index and coefficient variation.The test shou@ restart if the fatigue index is over 100% and the coefficient variation is over 10%. The results of data greatly vary with subjects. The gentleman is stronger than the lady. The right side is stronger than the left side. When the speed increases, the muscle power decreases. The ratio of knee extensor to flexor is about 2 to 1, muscie power to body weight is about 0.8 to 1.0 ft-lb at extensor 0.4 to 0.5 at flexor per pound in the speed of 60 degree per second.

Language

Traditional Chinese

First Page

1

Last Page

5

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