研究目的：本研究目的主要在評估桌球持拍動作介入後，對疑似發展協調障礙兒童的腕關節位置覺、觸覺及動作技巧的影響。方法：首先以Movement Assessment Battery for Children-2 (MABC-2) 評估工具篩選出28位8~10歲疑似發展協調障礙兒童，將其分成14位運動介入的實驗組與14位維持原來生活作息的控制組，實驗組進行十二週桌球持拍動作介入，並在介入前後使用三大項工具對兩組參與者進行測試：(一) 使用腕關節位置儀進行心理物理閾值區辨測試 (psychophysical discrimination threshold testing)，得到腕關節位置覺敏銳度閾值。(二) 使用觸覺曲率方塊分別進行觸覺偵測任務 (haptic detection task)，得到觸覺敏感度閾值 (haptic sensitivity)；以及觸覺辨識任務 (haptic discrimination task)，得到觸覺敏銳度閾值 (haptic acuity)。(三) 使用MABC-2測試手部操作靈敏度、丟接技巧、靜態與動態平衡三大面向的動作表現。將以上所得的資料以共變數分析 (ANCOVA) 進行統計分析。研究結果：實驗發現，十二週桌球持拍運動介入後，實驗組之疑似發展協調障礙兒童的腕關節位置覺敏銳度，與控制組相較並無顯著差異 (p = .955)；但在觸覺敏感度有提升，[F (1, 25) = 29.15，p＜ .001，η2 = 0.538；前測 vs. 後測 = 7.70 ± 3.24 vs. 4.63 ± 2.38]；在觸覺敏銳度亦無顯著差異 (p = .137)。而動作技巧部分，在手部操作靈敏度和控制組相較沒有達到顯著差異 (p = .836)；在丟接技巧 [F (1, 25) = 9.12，p = .006，η2 = 0.267 ]、靜態與動態平衡 [F (1, 25) = 7.29，p = .012，η2 = 0.226 ]及整體動作分數 [F (1, 26) = 6.21，p ＜ .05，η2 = 0.193 ] 則均有達到顯著差異。 結論：桌球持拍運動可有效改善疑似發展協調障礙兒童的觸覺敏感度及部分動作技巧。

Objectives: The purpose of this study is to assess the impact of table tennis intervention on wrist joint proprioception, haptic perception, and motor skills in children with a probable developmental coordination disorders.
Methods: Initially, 28 children aged 8 to 10 with developmental coordination disorders (including probable Developmental Coordination Disorder) were screened using the Movement Assessment Battery for Children-2 (MABC-2) assessment tool. These participants were then divided into an experimental group of 14 children receiving a 12-week table tennis intervention and a control group of 14 children maintaining their regular activities. Before and after the intervention, three tools were used to assess both groups: (1) Employing a wrist bimanual manipulandum to conduct a psychophysical discrimination threshold testing, obtaining wrist position sense acuity thresholds. (2) Utilizing a set of haptic curvature blocks for a haptic detection task to obtain haptic sensitivity thresholds and conducting a haptic discrimination task to obtain haptic acuity thresholds. (3) Implementing the MABC-2 to assess manual dexterity, aiming & catching, and static and dynamic balance in the domains of motor performance. Data were analyzed statistically by ANCOVA.
Results: The experiment revealed that after a 12-week table tennis intervention, there was no significant difference in wrist joint proprioception acuity between the experimental group of children with suspected developmental coordination disorder and the control group (p = .955). However, there was an improvement in haptic sensitivity [F (1, 25) = 29.15, p < .001, η² = 0.538; pre-test vs. post-test = 7.70 ± 3.24 vs. 4.63 ± 2.38]. There was no significant difference in haptic acuity (p = .137). Regarding motor skills, there was no significant difference in manual dexterity between the experimental group and the control group (p = .836). However, significant differences were observed in throwing and catching skills [F (1, 25) = 9.12, p = .006, η² = 0.267], static and dynamic balance [F (1, 25) = 7.29, p = .012, η² = 0.226], and overall motor skills [F (1, 26) = 6.21, p < .05, η² = 0.193].
Conclusions: Table tennis can effectively enhance haptic sensitivity and certain motor function in children with a probable developmental coordination disorders.

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