不同震動頻率滾筒操作對柔軟度與下肢運動表現立即性之影響

Abstract

目的 : 探討腿後側肌群經不同震動頻率滾筒操作對柔軟度與下肢運動表現之影響。方法 : 本實驗收集20位具運動習慣之大專生，統一先進行控制組(無震動)前後測實驗，再以隨機交叉方式分別進行高頻組(92Hz)與低頻組(45Hz)兩種震動頻率介入，左右兩側之腿後側肌群各操作滾筒90秒，以坐姿體前彎工具量測柔軟度，並在測力板上進行下蹲跳，收集峰值力量、垂直跳高度與發力率等資料，比較不同震動頻率滾筒操作後對柔軟度與下肢運動表現立即性之影響。使用SPSS 23.0統計軟體進行資料分析，以二因子變異數分析與t檢定比較受試者在前後測與震動頻率是否對柔軟度與及下蹲跳數據造成影響，顯著水準訂為α=.05。結果 : 一般滾筒與震動滾筒介入後皆可提高柔軟度；高頻率(92Hz)震動滾筒介入後可提高垂直跳高度；一般滾筒介入後可提升峰值力量；三組滾筒介入後皆對發力率數值沒有提升效果。結論 : 無論滾筒是否有震動功能，皆能有效提升柔軟度，不同震動頻率滾筒操作會影響不同運動表現能力，可視需求選擇合適之震動頻率。

The objective of this study was to investigate the acute effect of different vibration frequency rolling on flexibility and lower limb performance. Method: Twenty college students with exercise habits be collected, and the control group (no vibration) experiment was conducted first, and then two vibration frequencies of the high frequency group (92Hz) and the low frequency group (45Hz) were intervened in a random crossover design. Each foam rolling session on each leg with 90 seconds, using the sit and reach tool to measure the flexibility, and doing the countermovement jump on the force plate to collect data such as peak force, vertical jump height and rate of force development, and compare the acute effect of different vibration frequency on flexibility and lower limb performance after rolling. Data analysis using the SPSS version 23.0 statistical software, the two way ANOVA and t-tests were used to compare whether the subject’s pre to post test and vibration frequency affected flexibility and data of countermovement jump. All significant levels are set to α = .05. Results : Foam roller and vibration roller can improve the flexibility after intervention; high frequency vibration rollers can increase the vertical jump height after intervention; foam rollers can increase the peak strength after intervention; the three groups of rollers have not changed the rate of force development after intervention. Conclusion: Regardless of whether the roller has a vibration function, it can effectively improve the flexibility. Different vibration frequencies will affect different performance parameters, and it is necessary to select the appropriate vibration frequency according to the needs.