| EMG Changes of Biceps Femoris Muscle during Contraction with Different Loads and at different Speeds |
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| 摘 要： |
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EMG Changes of Biceps Femoris Muscle during Contraction with Different Loads and at different Speeds |
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| WANG Ruiyuan, XONG Kaiyu, SUN Wei. EMG Changes of Biceps Femoris Muscle during Contraction with Different Loads and at different Speeds[J]. Journal of Beijing Sport University, 1995, 0(Z2) |
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| Authors: | WANG Ruiyuan XONG Kaiyu SUN Wei |
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| Affiliation: | WANG Ruiyuan; XONG Kaiyu; SUN Wei |
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| Abstract: | The study made an observation of electromyograph changes of biceps femoris muscle during contraction with different loads and at different speeds. The results indicated: the IEMG during fast contraction (one elbow flexion each second) and slow contraction (one elbow flexion every two seconds) with three loads (5kg, 10kg, 15kg) didnot show significant difference whether be fore or after fatiguel the MPF of fast contraction be fore fatigue was larger than that of slow contraction: the IEMG during dynamic contraction to fatigue (5kg, 10kg) was significantly larger than that before fatigue; with the loading of 15kg the IEMG after fatigue significantly decreased;the MPF decreased during contraction to fatigue at all loadings. |
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| Keywords: | EMG MPF IEMG biceps femoris muscle contraction speed output work FT ST |
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