System Design and Application of Real Time Muscle Fatigue Evaluation for Volleyball Players during High Intensity Activities

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Project title/計畫英文名

Project Number/計畫編號

MOST 107-2410-H-033-036-

Translated Name/計畫中文名

高強度負荷下排球選手即時肌肉疲勞評估系統之設計與應用

Project Principal Investigator/計畫主持人

Lin, Kuo-Chuan

Funding Organization/主管機關

國家科學及技術委員會

Department/Unit/單位系所

Office of Physical Education

Start date/計畫起

01-08-2018

Expected Completion/計畫迄

31-10-2019

本研究計畫為『高強度負荷下排球選手即時肌肉疲勞評估系統之設計與應用』，主要目的為科研技術應用於排球肌力訓練中，透過微機電之技術作為修正訓練計畫的量化指標，此外以器械式伸腿機結合科研技術之阻力訓練進行效果探討。在本計畫中預計開發立即回饋為主體，並整合肌電圖、荷重元與加速規等儀器，應用於排球選手疲勞性評估與量測，並在分析運動員在時域、頻域、力量上的不同收縮階段與疲勞參數，此系統在設計上預期具有方便攜帶、立即回饋等優點。在計畫中預計招募 30位優秀排球選手，並將其分為80%、85%與90% 1RM的槓鈴式自由重量訓練，並以深蹲跳模式測試，計算並比較其力量與中位頻率參數是否有所差異，藉此了解訓練之成效。為確保所獲資料之信效度，本研究將採重複性實驗進行驗證，透過將動作捕捉系統與加速規同部所收集之資料，以級內相關係數 (intraclass correlation coefficient, ICC) 考驗所得資料之信效度。在比較高強度負荷訓練之分析採用重複量測單因子變異數分析 (one-way ANOVA, repeated measures)，並以雪費法 (Scheffe’Post Hoc) 進行事後比較。
In volleyball competitions, the ball is served, spiked, and received at high speeds. The liveliness and bounce of the ball are closely connected to the competition and rules. The weight, surface material, and internal pressure of the ball, and the physical effects created at the moment of collision, will directly influence athletes’ performance. Thus, before designing assistive equipment, it is necessary to measure the trends of the physical properties of the equipment accurately and to feedback relevant data to the manufacturers so that they may create balls with different functional structures. Therefore, this study aimed to explore the changes in the mechanical properties of volleyballs with various mass and applied it in reception training. Firstly, the dynamic mechanical properties (contact time, mean force, peak force, total impulse, ball velocity, initial momentum, incident impulse, and lost momentum) of those volleyballs were examined by launch machine and force plate. In this study, thirty-six volleyball players will be recruited and divide into smaller mass group (SMG), greater mass group (GMG), Conti regulation ball group (CRBG) and control group (CG). The participants will be asked to perform a six-week training program and be evaluated two weeks a time. The obtained data were then examined with Intraclass correlation coefficients (ICC) to determine their reliability. Trend Analysis was then used to examine the differences in volleyballs of different weights. Regarding to the results of training effects, the two-way mixed design ANOVA was applied to test the differences between groups and training phases. The significant level was set at α =.05.

Keyword(s)

加速規
荷重元
肌電圖
時域
頻域
accelerometer
load cell
electromyography
time domain
frequency domain

DSpace CRIS

System Design and Application of Real Time Muscle Fatigue Evaluation for Volleyball Players during High Intensity Activities

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