CAJ | 학술논문

从肌肉的发声原理出发，运用声学的研究方法，以股四头肌为对象，研究人在不同负荷时，股四头肌的肌音特征；利用Matlab 7.0软件编写小波处理程序及功率谱分析程序；对提取的肌音信号进行处理、分析、研究；揭示其发声规律和特点。为肌肉的力量训练、研究提供一种新的测试方法和依据；为无损检测肌肉疼痛、扭伤等疾病探索更好的分析手段。
종기육적발성원리출발，운용성학적연구방법，이고사두기위대상，연구인재불동부하시，고사두기적기음특정；이용Matlab 7.0연건편사소파처리정서급공솔보분석정서；대제취적기음신호진행처리、분석、연구；게시기발성규률화특점。위기육적역량훈련、연구제공일충신적측시방법화의거；위무손검측기육동통、뉴상등질병탐색경호적분석수단。
Based on vocalism principle of muscle,muscle tone characteristics of quadriceps femoris at different load were researched by means of acoustic methods. The wavelet processing program and power spectrum analysis program were written by the aid of Matlab7.0 software to process,analyze and research the extracted audio signals of muscle. vocalism rules and charac-teristics of the muscle are revealed in this paper. A new method and basis are provided for muscle strength training and re-search,and an analytical means for non-destructive detection of muscle ache and sprain.