目的:探討低頻振動對於恢復肌肉疲勞後之肌力是否有效益。方法:14名健康一般大學生,以60次/秒反覆下蹲跳方式誘發肌肉疲勞,分別於誘發疲勞前(BF)、疲勞後(AF)及恢復處理介入後(AR)這三個時段,以等速肌力儀60度/秒進行股四頭肌肌力測試。介入之恢復方法為:以振動按摩槍30Hz連續施作10分鐘(MG)及靜置休息(CON)。統計:以重複量數變異數分析(repeated measured ANOVA)考驗同一時間內兩種不同恢復方式組別在疲勞前和疲勞後的表現差異,以確保組間疲勞前和疲勞後的表現是否有同質。兩種恢復方式以重複量數變異數分析考驗三個時間點的差異比較,當達到顯著水準時,再以多重比較分析檢定法進行事後分析比較。統計顯著水準訂為α =.05。。結果:在肌肉力量表現上MG組恢復程度於AF與AR之比較中,在最大力量與平均力量上達顯著差異(p<.05);但在CON組的恢復上則沒有達顯著差異。結論:運動疲勞後經低頻振動按摩槍處理後在最大力量及平均力量皆可以達到有效的恢復,但仍無法恢復到疲勞前的狀態。
Objective: To investigate whether low-frequency vibration is effective in restoring muscle strength after muscle fatigue. Methods: 14 healthy college students induced muscle fatigue by repeated squat jumps of 60 times per second, and performed quadriceps muscle strength test at 60 degrees per second at three periods before induction of fatigue (BF), after fatigue (AF) and after intervention (AR) of recovery treatment. The method of recovery from the intervention is to vibrate the massage gun at 30Hz for 10 minutes continuously (MG) and to rest in sitting position (CON). Statistics: Repeated measured ANOVA tests the differences in the performance of two different recovery modes before and after fatigue over the same time to ensure whether the performance before and after fatigue between groups is homogeneous. The two recovery methods test the difference comparison of the three test time-point by repeating the number of variations, and when the significant level is reached, the post-analysis and comparison is carried out by the multiple comparative analysis verification method. The statistically significant level is set to α =.05. Results: In muscle strength performance, the recovery of MG was significantly different in the maximum strength and average strength compared with AF and AR (p<.05). However, there was no significant difference in the recovery of the CON group. Conclusion: After sports fatigue, the maximum strength and average strength can be effectively recovered after treatment by low-frequency vibration massage gun, but it is still not recovering to the state before fatigue.