前言：監測球員身體疲勞狀態可降低傷害發生風險與提升球員在場上表現的效率，近年來加速規感測器常被作為監測身體活動的檢測器材，若能透過便於攜帶的加速規監測球員疲勞後細微的動作變化，便能有效了解球員身體的疲勞狀況，幫助球員與教練進行場上的調度以及休息時間的安排。方法：召募12名健康男性，受試者進行一套與比賽狀態相似的訓練動作，讓受試者以間歇方式進行訓練，直到受試者疲勞，分析受試者身上的加速規數據，比較疲勞前後加速規資料差異，嘗試找出代表疲勞的指標。結果：手腕左右方向、腰部前後方向、腰部左右方向、腳踝前後方向、腳踝左右方向、腳踝垂直方向、腳踝合加速度這七個軸向具有分辨不同疲勞程度 (0%、25%、50%~100%) 的差異，其中腰部左右方向、腳踝前後方向、腳踝左右方向不同疲勞程度間具有較大的差異，但腳踝上加速規的訊號會出現超過儀器收取範圍的情形，而腰部則無此現象。結論：腰部左右方向具有區分疲勞程度較佳的效果，且不會受到儀器受取範圍的限制，未來可作為評估男性籃球員疲勞程度判斷的參考依據。

Purpose: Monitoring the physical fatigue of players can reduce the risk of injury and enhance their performance on the field. In recent years, accelerometer sensors are often used as monitoring equipment for physical activity. This study focuses on the fatigue changes during basketball sport. If the accelerometer can monitor the subtle changes of players after their fatigue, it will be helpful for players and coaches to track down player’s physical fatigue and adjust their arrangement and schedule. Methods: This study recruited 12 healthy men. Each participant was given a set of high intensity interval training activities which is similar to the condition of real basketball game. Researcher analyzed the data from accelerometer by using repeated-measures One-way ANOVA not only to compare the differences before and after fatigue, but also define the important index of fatigue. Result: The result indicated that lateral-wrist (left and right direction), anterior-posterior waist, lateral-waist (left and right direction), anterior-posterior ankle, lateral-ankle (left and right direction), vertical-ankle, and the ankle complex acceleration, these seven aspects have significant difference between different level of fatigue (0%、25%、50%~100%). Among these aspects, lateral-waist (left and right direction), anterior-posterior ankle, and lateral-ankle (left and right direction) have greater difference. However, the accelerometer on the ankle sometimes went beyond the range of the sensory area while the accelerometer on the waist did not have this issue. Conclusion: This study found that the lateral-waist (left and right direction) has the significant effect of distinguishing the level of fatigue, and will not be restricted by the range that the monitoring equipment adopted. Therefore, lateral -waist index can be used to evaluate the physical fatigue of male basketball players in the future.

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