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【論文摘要】健身震動桿訓練對桌球選手豎脊肌之影響：先導研究
【論文摘要】The effect of Flexi-bar training on erector spinae in table tennis players- A pilot study
摘要
目的：豎脊肌不僅是核心肌群的一部份，更是桌球選手保持軀幹穩定，以因應隨時快攻防守或殺球搶分的重要肌群。本先導研究運用健身震動桿訓練，觀察豎脊肌的肌肉張力及功能性動作表現，期待進一步探討選手因長期大量使用豎脊肌可能造成的下背傷害。方法：徵召大學乙組桌球選手，手持健身震動桿，配合核心訓練姿勢，單手或雙手一起搖動健身震動桿。訓練時間每次30分鐘，每週5次，連續2週，動作難度漸進增加。10天訓練結束後，以Myoton量測豎脊肌的肌肉張力，以功能性動作檢測評估動作表現和運動傷害，並檢驗訓練前後，慣用及非慣用側之差異。結果與討論：本研究發現，肌肉張力無論是慣用側（前17.04±0.99，後16.41±1.23）、非慣用側（前16.80±1.26，後16.33±1.72），訓練後都有下降的趨勢。功能性動作檢測中，與核心肌群最相關的旋轉穩定項目，訓練後有進步（前1.33±0.47，後1.67±0.47）。此外，功能性動作檢測總分大於14分（前11.67±0.94，後測14.33±0.47），表示運動傷害風險降低。基於以上的初步實驗結果，健身震動桿訓練對於豎脊肌張力及其功能性活動表現有正面的影響，且可能降低運動傷害風險。因此，導入健身震動桿訓練可能可以提升核心肌群的穩定度，並預防大量運動後的下背傷害。
並列摘要
Introduction: Erector spinae is not only a part of core muscle, but a vital muscle that make table tennis players keep trunk steady to response for defending counterstroke or smashing for goal. In this pilot study, the effects of Flexi-bar training on muscle tone of erector spinae and functional performance were examined, and the low back pain resulted from overuse of erector spinae was discussed. Method: The second division of college players were recruited. With holding the Flexi-bar by one or two hands, the college players shook the Flexi-bar under the postures of core training. The training was 30 minute per day, 5 times per week, for 2 weeks. The difficulty level increased by time. After 10-day training, the Myoton was used to measure the muscle tension of erector spinae, and the Functional Movement Screen (FMS) was used to evaluate functional performance and sport injuries. The difference before and after the Flexi-bar training as well as the difference between dominance and non-dominance were tested. Results & Conclusion: The muscle tension of erector spinae decreased after Flexi-bar training regardless of dominance side (pre 17.04±0.99, post 16.41±1.23) or non-dominance side (pre 16.80±1.26, post 16.33±1.72). As to FMS, the testing item of rotation stability was improved (pre 1.33±0.47, post 1.67±0.47). Furthermore, the summed score of FMS was more than 14 after training (pre 11.67±0.94, post 14.33±0.47), meaning decreased risk of sport injuries. Based on the results of this pilot study, the Flexi-bar training may play a positive effect on muscle tension of erector spinae and functional performance as well as decreasing the risk of sport injuries. Therefore, the intervention of Flexi-bar may enhance the strength of core muscle and prevent the low back pain caused by excessive exercise.