The Journal of Korean Physical Therapy

The Korean Society of Physical Therapy (대한물리치료학회)
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Changes of Electroencephalogram according to Contraction Training Methods of Tibialis Anterior Muscle in Healthy Women

정상 여성에게서 앞 정강근의 수축훈련방법에 따른 뇌파의 변화

  • Lee, Jeong-Woo (Department of Physical Therapy, Kwangju Women's University) ;
  • Kim, Moon-Jeong (Department of Physical Therapy, Kwangju Women's University) ;
  • Yoon, Se-Won (Department of Physical Therapy, Kwangju Women's University)
  • 이정우 (광주여자대학교 물리치료학과) ;
  • 김문정 (광주여자대학교 물리치료학과) ;
  • 윤세원 (광주여자대학교 물리치료학과)
  • Received : 2012.03.16
  • Accepted : 2012.04.13
  • Published : 2012.04.25
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Abstract

Purpose: This study aims to examine the power changes in eletrocenphalogram (EEG) detected from the tibialis anterior muscle, during repetitive contraction exercise in normal female adults. Methods: The subjects of this study were 24 normal adult females, with no musculoskeletal or nervous system disorders. The 24 female subjects were divided into two groups: 12 subjects comprised a voluntary stimulation training group, and the other 12 subjects comprised an electrical stimulation training group. A total of thirty contractions were made repetitively by each woman, with maximal voluntary contraction exercise for six seconds, and a resting time of three seconds. During the experiment, their EEG was measured at eight positions. The eight positions were Fpz, Fz, Cz, CPz, C3, C4, P3, and P4, in accordance with the international 10~20 system. Results: The relative alpha power and beta power showed no statistically significant differences between the two groups. But the relative gamma power of the CPz, C3, C4, P3, and P4 areas showed statistically significant differences between the two groups (p<0.05). The relative theta power of the C4 area showed statistically significant differences between the two groups (p<0.05). Conclusion: Our findings show that tibialis anterior muscle contraction by electrical stimulation and by voluntary repeated contraction differentially affected brain activation. In particular, the CPz, C3, C4, P3 positions of relative gamma power showed brain activation in voluntary contraction. The C4 position of relative theta power showed different brain activation between the two groups.

Keywords

References

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