静的作業における筋群別疲労抵抗性の新規定法
A novel approach for determining fatigue resistances of different muscle groups in static cases
外部負荷と最大随意収縮を考慮した理論的METモデルを拡張し、既存24モデルと比較して汎用性を検証するとともに、筋群ごとの疲労抵抗性を回帰的に算出する手法を提案した。
著者: Liang Ma, Damien Chablat, Fouad Bennis, Wei Zhang, Bo Hu, François Guillaume
分類: cs.RO
原文アブストラクト
In ergonomics and biomechanics, muscle fatigue models based on maximum endurance time (MET) models are often used to integrate fatigue effect into ergonomic and biomechanical application. However, due to the empirical principle of those MET models, the disadvantages of this method are: 1) the MET models cannot reveal the muscle physiology background very well; 2) there is no general formation for those MET models to predict MET. In this paper, a theoretical MET model is extended from a simple muscle fatigue model with consideration of the external load and maximum voluntary contraction in passive static exertion cases. The universal availability of the extended MET model is analyzed in comparison to 24 existing empirical MET models. Using mathematical regression method, 21 of the 24 MET models have intraclass correlations over 0.9, which means the extended MET model could replace the existing MET models in a general and computationally efficient way. In addition, an important parameter, fatigability (or fatigue resistance) of different muscle groups, could be calculated via the mathematical regression approach. Its mean value and its standard deviation are useful for predicting MET values of a given population during static operations. The possible reasons influencing the fatigue resistance were classified and discussed, and it is still a very challenging work to find out the quantitative relationship between the fatigue resistance and the influencing factors.
