兩種不同頻率之全身震動訓練對平衡能力與柔軟度之立即影響

The Immediate Effects of Two Different Frequencies of Whole Body Vibration on Balance and Flexibility

賴仲亮(Chung-Liang Lai) ； 曾炫諭(Shiuan-Yu Tseng) ； 王淳厚(Chun-Huo Wang) ； 高木榮(Mu-Jung Kao) ； 張特彰(Te-Zhang Zhang)

《台灣復健醫學雜誌》 39卷1期 (2011/03) Pp. 17-23

https://doi.org/10.6315/2011.39(1)03

摘要

背景與目的：全身震動(whole body vibration)是一種新興的運動訓練，已廣泛使用於運動員、老年人、中風病人等各種族群，並經由研究證實對身體肌肉力量與平衡能力有促進之反應。因此，本研究目的爲探討不同頻率之震動訓練對於身體平衡及柔軟度表現之影響。
方法：三十位無運動習慣之正常女性受測者參與本研究，藉由全身震動儀(LV-1000, X-trend, Taiwan)每位受測者在不同時間分別接受兩種頻率五分鐘固定震幅(4mm)的全身震動訓練，其中頻率分別爲低頻20Hz與高頻40Hz，訓練前後藉由平衡系統(Balance system, Biodex, USA)之穩定度限制參數量測受試者之平衡表現，並再藉由坐姿體前彎量測受測者接受訓練前後之柔軟度變化。
結果：低頻20Hz全身震動訓練後對柔軟度表現有顯著增加25.05% (P=0.002)且增加平衡能力之穩定度限制27.71% (P=0.036)；但於高頻40Hz全身震動訓練中，發現對柔軟度有降低之現象-14.1%(P=0.004)。
結論：不同頻率之全身震動訓練顯示出不同的訓練效果。全身震動訓練於低頻20Hz時對無運動習慣之正常人平衡感及柔軟度有明顯助益。
臨床意義：針對正常人的平衡感及柔軟度訓練，可考慮使用低頻之全身震動訓練方式。

關鍵字

震動訓練 ； 平衡 ； 柔軟度

並列摘要

Background and Purpose: Whole body vibration (WBV) training is a novel exercise intervention that is used in both athletic and general populations with the aim of improving muscle strength and balancing ability. The present study investigated the immediate effects of different frequencies of WBV on flexibility and balance performance.
Methods: Thirty untrained subjects were assigned to a 5-min horizontal WBV (LV-1000, X-trend, Taiwan) training session using a vibrating plate that produced sinusoidal oscillation at 20 Hz (low frequency) and 40 Hz (high frequency) with constant amplitude. Balance ability was assessed using the Balance system (Biodex, USA), including the limits of stability (LOS) test, and flexibility was assessed using the sit and reach test. All parameters were administered before and after the WBV training.
Results: WBV with low-frequency stimulation was shown to significantly increase sit and reach flexibility by 25.05% (P＜.05) and significantly increase balance ability with LOS by 29.71% (P＜.05). WBV with high-frequency stimulation resulted in a significant decrease in flexibility of 14.1% (P＜.05).
Conclusions: The results showed the influence of WBV frequency on immediate adaptive responses. In particular, the untrained subjects demonstrated immediate enhancement of neuromuscular performance after low-frequency WBV stimulation.
Clinical Relevance: Low-frequency WBV training is a convenient and effective modality to enhance human balancing ability and flexibility.

並列關鍵字

vibration training ； balance ； flexibility