| Summary: | 碩士 === 國立體育大學 === 運動科學研究所 === 99 === Abstract
Objective: To find out the capibility of dynamic balancing and static equilibrium of general fatigue under different poses for excellent volleyball players on the school team and general colleague students. Method: Before and after the excellent volleyball players on the school team and general colleague students proceed fatigue by standing with one foot on differnet sides, the differences of the capibility of dynamic balancing and static equilibrium. Static equilibrium is about the balancing movement by standing with one foot on the different side, and dynamic balancing is the location of the object when 50% of the greatest vertical caper altitude is measured from every subject. The subject has to keep balanced with one foot on a different side after capering vertically and touch the object. Result: The comparison of the dynamic balancing and static equilibrium of the left/right foot before and after fatigue between the two groups. ANOVA shows that displacement radius of COP (except for 10 to 20 seconds) and the area that COP covers while moving after fatigue obviously increase. (P<0.05), indicating that fatigue dynamic balancing worsens; the movement speed of COP obviously increases only at 20 seconds to 30 seconds (P=0.048). As for the left/right foot, the moving speed of COP at full seconds (P=0.019) and the area that COP covers when moving at 0 to 10 seconds (P=0.01) and full seconds (P=0.05), the right one is obviously less than the left one, indicating that the contorl of dynamic balancing of the right one is better than the left one. The comparision of the two groups, volleyball players are obviously better than general colleague students in terms of the movement covering area of COP (except for at 20 to 30 seconds). Besides, the comparison of dynamic balancing of both feet touching the ground before/after fatigue from the two groups. ANOVA shows that the displacement radius, movement speed, and the covered area from moving of dynamic COP are obviously greater (P<0.05) after fatigue than before fatigue, however, dynamic balancing between the two groups shows no obvious difference.Conclusion: The movement styles have an influence on the quality of dynamic balancing and static equilibrium, which also influences the performance on different movement styles. Volleyball players not only have to constantly change the poses and movements during the tourments as the performance on dynamic balancing directly affects players’ movement coordination and efficiency while hitting balls, but also require good balancing skills to assist in the technique training and learning. The more exhaustion accumulates, the higher possibilities the injuries may occur.
Key words：General Fatigue, Volleyball players, Balance
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