本研究目的為透過內含三軸加速規之穿戴裝置測量籃球選手於正式比賽中之運動強度。以國內一所參加中華民國大專院校106學年度籃球運動聯賽公開男生組第一級隊伍為受試者，蒐集該隊14位受試者（後衛4位，前鋒5位，中鋒5位）在7場複賽之資料，並分析比較不同位置、角色球員、不同節次及單節次勝與負10分差之運動強度差異。結果顯示：一、後衛的運動強度顯著高於前鋒及中鋒；而前鋒及中鋒之間無顯著差異。二、比賽中先發與替補球員的運動強度無顯著差異。三、第一節與第三節之運動強度顯著高於第二節及第四節。四、負10分以上節次球隊平均運動強度顯著高於勝10分以上之節次。本研究結論為：加速規測得之數據可分辨不同位置球員於實際籃球比賽中運動強度之差異，教練可運用穿戴裝置監控選手體能負荷，作為比賽策略運用及球員輪替之參考。

The purpose of this study was to measure the exercise intensity of basketball players in official games using 3-axis accelerometer, a wearable device. Players from Taiwan men's basketball team, who participated in 2017 University Basketball Association (UBA) division I, were recruited for this study. Data were collected from 14 participants (4 guards, 5 forwards, and 5 centers) in seven quarterfinal games. The obtained data were analyzed to compare the differences in exercise intensity at different positions, roles, and quarters, and also between the teams with a 10-point variation in a single quarter. The results indicated that (1) the exercise intensity of guards was significantly higher than that of the forwards and centers, while no significant difference in exercise intensity was observed between forwards and centers. (2) Exercise intensity was not significantly different between starters and bench players in the seven quarterfinal games. (3) The exercise intensity in the first and third quarters was significantly higher than those in the second and fourth quarters. (4) When the team was 10 points (or more) behind, the average exercise intensity in such quarter was significantly higher than the team that was ahead of 10 points (or more). We conclude that accelerometer is able to distinguish the exercise intensity of players at different positions during real basketball competition. Wearable devices like accelerometer could have practical applications for coaches to monitor the physical load of players, to establish game strategies, and to determine timing of player rotations.