籃球特定基本動作之膝控制肌群關節角度變化之關係

The Relationship of Knee Muscles Joint Motion Angle Activities in Specific Basketball Movements

王進華(Chin-Hua Wang)

《大專體育學術專刊》 92年度 (下) (2003/06) Pp. 269-278

https://doi.org/10.6695/AUES.200306_92.0092

摘要

The purpose of this study was to investigate the relationship of Knee muscles joint angle activities among these four specific basketball movements (such as sudden stop, cross over, jump shot, and knee twist), using the electrogoniometer and foot-switch to measure knee joint motion and foot-toground contact signals. Sixteen Senior high school basketball players voluntarily participated this study (mean age: 18.3 years, mean height: 184.5 cm, and mean weight: 74.2 kg). AII subjects had no previous history of knee ACL injury. Four specific basketball movements were investigated in this study. They were sudden stop, cross over, jump shot, and twist. Two channels of electronic signals were measured in this study. There were channels, one channel of electrogoniometer was used to measure knee joint motion and another one channel of foot-switch sensory was used to measure the foot-to-ground contact. AII signals were simultaneously collected with sampling 1000 Hz. One-way ANOVA was used to examine the differences among four movements' Knee joint motion angle activities. Scheffe's multiple comparisons were used to examine the difference between each test group.The result showed that there are four special basketball movements: jump shot, sudden stop, cross over and twist. There are significant differences (p＜0.05) in knee joint motion during pre-landing and landing phase. In pre-landing phase, JS (74.9°) group bigger than the others (JS＞TW＞SS＞CO). In landing phase, TW(63.1°) bigger than the others (TW＞CO ＞JS＞SS). Therefore in landing phase, jump shot and sudden stop movements were more dangerous than cross over and twist. During the landing phase, the knee joint motion angle activity smaller than the pre-Ianding motion. However, according to our study, the knee joint motion angle is near 30 degree (JS 26.99, SS 30.72°).We believed that the sudden stop and stop shot were more dangerous than cross over and twist especially during landing phase motion angle. These findings can be implicated for basketball players especially during the four basketball movements pre-land and land phase. The results suggest that exercise program of sudden stop and jump shot should be learned on the land phase of knee motor skill.

關鍵字

籃球基本動作 ； 膝屈曲角度 ； 電子關節量角器 ； 足底感應器

並列摘要

The purpose of this study was to investigate the relationship of Knee muscles joint angle activities among these four specific basketball movements (such as sudden stop, cross over, jump shot, and knee twist), using the electrogoniometer and foot-switch to measure knee joint motion and foot-toground contact signals. Sixteen Senior high school basketball players voluntarily participated this study (mean age: 18.3 years, mean height: 184.5 cm, and mean weight: 74.2 kg). AII subjects had no previous history of knee ACL injury. Four specific basketball movements were investigated in this study. They were sudden stop, cross over, jump shot, and twist. Two channels of electronic signals were measured in this study. There were channels, one channel of electrogoniometer was used to measure knee joint motion and another one channel of foot-switch sensory was used to measure the foot-to-ground contact. AII signals were simultaneously collected with sampling 1000 Hz. One-way ANOVA was used to examine the differences among four movements' Knee joint motion angle activities. Scheffe's multiple comparisons were used to examine the difference between each test group.The result showed that there are four special basketball movements: jump shot, sudden stop, cross over and twist. There are significant differences (p＜0.05) in knee joint motion during pre-landing and landing phase. In pre-landing phase, JS (74.9°) group bigger than the others (JS＞TW＞SS＞CO). In landing phase, TW(63.1°) bigger than the others (TW＞CO ＞JS＞SS). Therefore in landing phase, jump shot and sudden stop movements were more dangerous than cross over and twist. During the landing phase, the knee joint motion angle activity smaller than the pre-Ianding motion. However, according to our study, the knee joint motion angle is near 30 degree (JS 26.99, SS 30.72°).We believed that the sudden stop and stop shot were more dangerous than cross over and twist especially during landing phase motion angle. These findings can be implicated for basketball players especially during the four basketball movements pre-land and land phase. The results suggest that exercise program of sudden stop and jump shot should be learned on the land phase of knee motor skill.

並列關鍵字

basketball movements ； knee joint motion angle ； electrogoniometer ； foot-switch