不同高度單腳著地下肢關節角度與地面反作用力之關係
2014年01月
研究生：林坤勇
指導教授：黎俊彥 博士
摘要
著地動作的好壞與否與下肢關節的傷害有密切的關係，較佳的著地動作必須能夠有效緩衝吸收人體所受到的衝擊。本研究以本研究以十部 Vicon 紅外線攝影機和 Kistler 測力板同步收集十位研究參與者（年齡 21.90 ± 4.43 歲、身高 172.15 ± 5.81公分、體重 66.60 ± 9.18 公斤）。以兩種不同高度 (50 % 、100 %) 於兩種不同動作 (DL、DJ) 之慣用腳著地的運動學與動力學資料，以瞭解不同高度與不同動作的改變之慣用腳對於地面反作用力參數的關係。將所得資料以相依樣本 t 檢定分析 (dependent sample t-test) 不同高度之差異 ，統計顯著水準皆定為 α = .05。結果顯示無論是向下著地 (DL) 或向下著地跳躍 (DJ) 在關節活動度 (ROM) 在髖關節比較小，但在膝與踝關節卻比較大。因此，加大膝與踝關節活動度 (ROM) 可以減少因著地時衝擊力過大所產生的地面反作用力，以減少對身體骨骼肌肉組織所產生的壓力。
關鍵詞：高度、單腳著地、關節角度

The relationship between lower extremity joint angles and ground reaction force during single leg landings in different heights
January, 2014
LIN, KUM-YUNG
Advisor:Dr.Alex, J.Y. LEE
Abstract
Landing action is good or not has a close relationship with the lower extremity joints hurt, better landing action must be able to effectively cushion the impact absorbed by the body. In this study, this study ten Vicon infrared cameras and synchronized Kistler force plates to collect ten study participants (Age: 21.90 ± 4.43 years old, Height:172.15 ± 5.81 cm, Weight: 66.60 ± 9.18 Kg). In two different heights (50%, 100%) at two different actions (DL, DJ) dominant leg Kinematics and Kinetic of land information to understand the different heights and different actions for changing the dominant leg ground reaction relations force parameters. The resulting information is dependent sample t-test analysis height differences, the level of statistical significance were set at α = .05. The results show whether the drop landing (DL) or the drop jump (DJ) in the range of motion (ROM) of the hip joint is relatively small, but larger than the knee and ankle. Therefore, to increase the range of motion of the knee and ankle can Landing reduce the impact force arising from large ground reaction forces to reduce pressure on the body produced by bone muscle tissue.
Keywords: Height, Single leg landings, Joint angle.

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