Comparative Aanalysis of Fatigue on Muscle Activities and Physiological Variables during Ergometer Test

에르고미터 운동 시 근활성도와 생리학적 피로도 비교 분석

  • Yoon, Chang-Jin (Department of Physical Education, College of Education, Kyungpook National University) ;
  • Chae, Woen-Sik (Department of Physical Education, College of Education, Kyungpook National University) ;
  • Kang, Nyeon-Ju (Department of Physical Education, College of Education, Kyungpook National University)
  • 윤창진 (경북대학교 사범대학 체육교육과) ;
  • 채원식 (경북대학교 사범대학 체육교육과) ;
  • 강년주 (경북대학교 사범대학 체육교육과)
  • Received : 2010.07.31
  • Accepted : 2010.09.13
  • Published : 2010.09.30


The purpose of this study was (a)to compare electromyographic (EMG) activities and physiological variables on the development of fatigue induced by ergometer test, (b)to determine investigate the differences in the stage of fatigue between the electromyographic characteristics and physiological variables. Nine male university students who have no musculoskeletal disorder were recruited as the subjects. The electromyographic characteristics(peak IEMG, average IEMG, median frequency, mean edge frequency) and physiological variables(HR, RPE, blood lactate) were determined for each stage(15, 30, 45, 60 minutes, all out). For each dependent variable, one-way analysis of variance(ANOVA) with repeated measures and correlation analysis were performed to test if significant difference existed(p<.05). The results showed that peak IEMG, average IEMG from low extremity and physiological variables were significantly increased during the all-out stage. EMG parameters in VL, VM show significantly correlation with physiological variables during whole stages. This indicated that IEMG values may be proper parameters to determine muscle fatigue rather than physiological variables.



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