動力節奏：使用即時震動回饋提升力量訓練的節奏準確率

PowerTempo: Improving Strength Training Tempo Accuracy by Using Real-time Vibrotactile Feedback

趙君傑(Jyun-Jie Jhao)

指導教授 ： 康仕仲

共同指導教授 ： 陳彥仰

國立臺灣大學/工學院/土木工程學研究所/碩士(2019年)

https://doi.org/10.6342/NTU201902937

摘要

力量訓練可以改善健康，健康，身體形象和運動表現。在力量訓練期間，肌肉反復經歷3個階段的變化，從肌肉縮短（同心）到保持相同的長度（等距）到延長（離心）。這種同心-等距-離心循環的時間稱為「節奏」，三個階段之間的最佳比例因不同的目標而不同。本文介紹了「動力節奏」，一種可穿戴設備，引導用戶透過一系列震動回饋來遵循節奏。我們首先進行了一項20人的用戶定義研究，以了解人們如何將振動回饋映射到不同的力量訓練動作，並分析了100種振動模式以確定最佳的震動模式。接著我們實作了「動力節奏」雛形裝置，在12人評估結果顯示，用戶可以根據設計的振動觸覺反饋區分當前的重複階段，我們的系統顯著提高了節奏精度達28％（p<0.01）。與沒有振動反饋和簡化的振動反饋相比，參與者更傾向於用戶定義的振動反饋模式到其他條件（75％）和額定用戶定義的振動反饋模式在性能方面更好。

關鍵字

力量訓練 ； 節奏 ； 可穿戴設備

並列摘要

Strength training improves fitness, health, body image, and athletic performance. During strength training, the muscles repeatedly go through 3 stages of changes in length, from shortening (concentric) to maintaining the same length (isometric) to lengthening (eccentric). The timing of this concentric-isometric-eccentric cycle is called tempo and the optimal ratio between the three phases is different for different goals. This paper presents PowerTempo, a wearable device which guides users to follow the tempo by series of vibrations. We first conducted a 20-person user-defined study to understand how people map vibration to different strength training motions and tempo, and analyzed 100 vibration patterns to identify the best candidates. We implemented a PowerTempo prototype and our 12-person evaluation results show that vibrotactile feedback significantly improved tempo accuracy by up to 28% (p<0.01). Participants preferred user-defined vibration feedback pattern to other conditions and rated user-defined vibration feedback pattern better in terms of performance than no vibration feedback and simplified vibration feedback (75%).

並列關鍵字

Strength training ； tempo ； wearable device

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