The Journal of Korean Physical Therapy

The Korean Society of Physical Therapy (대한물리치료학회)
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Changes in the Spinal Motor Neuron Excitability Depending on Postural Changes in Post Stoke Hemiplegics

뇌졸중 후 편마비 환자의 체위변화에 따른 척수운동신경원 흥분성 변화

  • Park, Young-Hyun (Department of Physical Therapy, Chun-buk National University Hospital) ;
  • Kim, Yong-Nam (Department of Physical Therapy, Nambu University) ;
  • Kim, Su-Hyon (Department of Physical Therapy, Graduate School) ;
  • Oh, Seok (Department of Physical Therapy, Graduate School) ;
  • Choi, Ji-Ho (Department of Physical Therapy, Graduate School) ;
  • Kim, Tae-Youl (Department of Physical Therapy, Dongshin University)
  • 박영현 (전북대학교병원 물리치료실) ;
  • 김용남 (남부대학교 물리치료학과) ;
  • 김수현 (동신대학교 대학원 물리치료학과) ;
  • 오석 (동신대학교 대학원 물리치료학과) ;
  • 최지호 (동신대학교 대학원 물리치료학과) ;
  • 김태열 (동신대학교 물리치료학과)
  • Received : 2010.05.20
  • Accepted : 2010.08.08
  • Published : 2010.08.25
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Abstract

Purpose: The purpose of this study was to measure changes in the H-reflex and V wave under loading conditions (e.g. prone and standing position) and to investigate whether postural change would affect the H-reflex and V wave in post stroke hemiplegic patients. Methods: Thirty persons with hemiplegia resulting from stroke (20 males, 10 females) participated in this study. Electromyography (EMG) was used to electrically stimulate and record the soleus H-reflexes and V waves under various loading conditions. The normality of the distribution of each variable (H latency, $H_{max}/M_{max}$ ratio, $V_{max}/M_{max}$ ratio) was tested using the Kolmogorov-Smirnov test. The means of normally distributed continuous data were assessed by independent t-test (${\alpha}$=0.05). Results: There were statistically significant differences in $H_{max}/M_{max}$ ratio (p<0.01), $V_{max}/M_{max}$ ratio (p<0.01), H latency (p<0.01) among the prone and standing position. Conclusion: We found that the H-reflex and V wave in standing position was more active to weight bearing load than prone position.

Keywords

References

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