| Summary: | 碩士 === 國立體育學院 === 運動科學研究所 === 90 === The purpose of the study was to determine the effect of muscle fatigue on knee joint proprioception with specific fatigue protocol and functional weight-bearing position. Twenty-one healthy subjects were participated in this study. Electric goniometer and Kistler 9290 force plate with Quattro Jump program were used to measure knee joint flexion angles and fatigue index. 15 degrees of knee flexion was the starting position, and the target angles were set at 30, 45, and 60 degrees. The target angles were measured pre- and after fatigue exercise. One-way ANOVA and Turkey HSD post hoc were used to analyze mean differences of AAE among total knee joint and three target angles between each testing time in this study. AAE average graphs were used to describe the recovery status of knee joint proprioceptiion after muscle fatigue in this study. The findings demonstrated:
1. Total knee joint proprioception of pre- and after continuous jumps showed significant
difference in functional weight-bearing position (p<.05).
2. All of the target angles showed significant differences of pre- and after continuous jumps (p<.05), but there were three testing times in the mid target angle (45 degrees) showed significant differences when compared with pre-fatigue AAE.
3. Muscle fatigue induced by continuous jumps influenced knee joint proprioception, and the worst of the knee joint proprioception happened at 5 minutes after continuous jumps.
4. The function of knee joint proprioception should rest at least 50 minutes in order to recovery from muscle fatigue induced by continuous jumps.
Based on our findings, we suggested that sports activities which similar to continuous jumps, such as volleyball and basketball, should add muscle strength training programs to knee joint, and to ensure proper rest when encounter muscle fatigue, in order to prevent sports injury.
Key Words: Continuous Jump, knee joint, muscle fatigue, proprioception, recovery time.
|
|---|
