The Journal of Korean Physical Therapy

The Korean Society of Physical Therapy (대한물리치료학회)
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The effects of brake pedaling speed on onset time of muscle contraction in the lower extremity during driving task

운전 시 브레이크 페달링 속도가 하지 근수축 개시시간에 미치는 영향

  • Sung, Gil-Hee (Department of Physical Therapy, College of Medical Science, Catholic University of Daegu) ;
  • Hwang, Yoon-Tae (Department of Physical Therapy, Gangneung Yeongdong College) ;
  • Park, Ji-Won (Department of Physical Therapy, College of Medical Science, Catholic University of Daegu) ;
  • Shin, Hwa-Kyung (Department of Physical Therapy, College of Medical Science, Catholic University of Daegu)
  • 성길희 (대구가톨릭대학교 의료과학대학 물리치료학과) ;
  • 황윤태 (강릉영동대학 물리치료과) ;
  • 박지원 (대구가톨릭대학교 의료과학대학 물리치료학과) ;
  • 신화경 (대구가톨릭대학교 의료과학대학 물리치료학과)
  • Received : 2010.07.15
  • Accepted : 2011.02.11
  • Published : 2011.02.25
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Abstract

Purpose: Driving is essential to maintain independent living status in modern times. Many patients want to know when they can drive again, but it's only possible if they have the ability to control lower extremity muscles. In this study, we compared the effects of velocity on onset time of lower extremity muscles during driving tasks. Methods: Twelve participants (5 male, 7 female) were enrolled. EMGs were used to test the onset time of lower extremity muscles; tibialis anterior, soleus, rectus femoris. To analyze the data, we used two way ANOVA. Results: According to brake pedaling velocity, there was a significant difference in brake response time (p<0.05). Further, when comparing the lower extremity muscles, there was a significant difference in onset time (p<0.05). The order of muscle recruitment was tibialis anterior, rectus femoris, and soleus for achieving maximal velocity, but the order was rectus femoris, tibialis anterior, soleus for achieving submaximal velocity. Conclusion: Brake pedaling velocity has significant effects on onset time of muscle contractions in the lower extremities. We suggested that a future study needs more subjects and more detailed research such as evaluat-ions of visuo-motor coordination and fine motor dexterity.

Keywords

References

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