The Journal of Korean Physical Therapy

The Korean Society of Physical Therapy (대한물리치료학회)
권호 표지

A Electromyographic Fatigue Analysis of the Gastrocnemius and Soleus

근전도를 이용한 하퇴삼두근의 근피로 분석

  • Hong Wan-Sung (Department of Physical Therapy, Dong-Nam Health College) ;
  • Kim Gi-Won (Major in Physical Therapy, Dept. Rehabilitation Science School, Daegu University) ;
  • Kim Byung-Kon (Department of Physical Therapy, Taegu Health College) ;
  • Oh Joung-Lim (Department of Physical Therapy, Graduate School of Rehabilitation, Daegu university)
  • 홍완성 (동남보건대학 물리치료과) ;
  • 김기원 (대구대학교 대학원 재활과학과 물리치료) ;
  • 김병곤 (대구보건대학 물리치료과) ;
  • 오정림 (대구대학교 재활과학대학원 재활과학과 물리치료)
  • Published : 2002.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

The fatigue process of the triceps surae was evaluated during a standing heel-rise test, comparising of pre-fatigue and post-fatigue. Sixteen healthy subjects with a mean age of 22.88 years participated. The heel-rise test was performed until exhaustion, and electromyographic activity expressed as mean value and root mean square of the gastrocnemius and soleus muscles were calculated. The average number of heel-rise performed was 63.69$\pm$26.10. The result of this present study indicate that the EMG signal is sensitive to the different muscle fatigue. Mean value and RMS decreased significantly in after fatigue. Significant difference were found between the pre-fatigue and post-fatigue in the total subjects. But there were no significant changes in mean and RMS between the male and female during standing heel-rise test. The present results, showing decreased EMG signal in the triceps surae, could be used as reference when testing the fatigue process in different clinical conditions. Recommendations for standardization of a heel-rise test are given.

Keywords