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복직근의 기능적 전기자극이 경직형 뇌성마비 아동의 호흡 능력에 미치는 효과
Effects of Functional Electrical Stimulation of Rectus Abdominis on Respiratory Capabilities in Children with Spastic Cerebral Palsy 원문보기

대한물리치료학회지 = The journal of Korean Society of Physical Therapy, v.17 no.4, 2005년, pp.601 - 612  

조미숙 (대구대학교 대학원 재활과학과 물리치료) ,  박래순 (대구대학교 재활과학대학 물리치료학과)

초록
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본 연구는 복직근의 기능적 전기자극이 경직형 뇌성마비 아동의 1회 호흡용적과 폐활량 등의 호흡능력과 복직근의 근육활동에 미치는 영향을 알아보기 위해서 대구 시내 OO특수학교에 재학 중인 14세 이상 16세 미만의 경직형 사지 뇌성마비 아동 6명(남자 3, 여자 3)을 대상으로 하여 복직근에 1회 20분. 주 3회씩 총 6주간 기능적 전기자극을 적용하였다. 기능적 전기자극의 적용 6주 전과, 직전에 두 번의 사전 검사와 적용 후 사후 검사를 실시하였다. MP30(Biopack, USA)을 이용하여 폐활량과 예측치 폐활량 백분율, 1회 호흡용적을 검사하였으며 Table면전극 근전도(Noraxon, USA)를 이용하여 복직근의 근육 활동량을 측정하였다. 분석결과는 다음과 같다. 1. 복직근의 기능적 전기자극 적용 6주 전과 직전의 폐활량은 유의한 차이가 없었으나, 적용 후의 폐활량은 적용 전에 비해 유의한 증가를 나타내었다(p<0.05). 2. 복직근의 기능적 전기자극 적용 6주 전과 직전의 예측치 폐활량 백분율은 유의한 차이가 없었으나, 적용 후의 예측치 폐활량 백분율은 적용 전에 비해 유의한 증가를 나타내었다(p<0.05). 3. 복직근의 기능적 전기자극 적용 6주 전과 직전의 1회 호흡용적은 유의한 차이가 없었으나, 적용 후의 1회 호흡용적은 적용 전에 비해 유의한 증가를 나타내었다(p<0.05). 4. 복직근의 기능적 전기자극 적용 6주 전과 직전의 복직근의 활동 값은 유의한 차이가 없었으나 적용 후의 복직근의 활동 값은 적용 전에 비해 유의한 증가를 나타내었다(p<0.05). 이상의 결과를 종합해 볼 때 6주간의 복직근의 기능적 전기자극이 경직형 뇌성마비 아동에 있어서 복직근의 근력을 강화시킴으로써 폐활량과 1회 호흡 용적 등의 호흡능력을 향상시킴을 확인할 수 있었다.

주제어

AI 본문요약
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제안 방법

  • After the selection of six children with spastic cerebral palsy and who fit the subject criteria of this research, FES was performed on the rectus abdominis . Previous tests were taken, FES was applied for six weeks and then post-tests were executed.
  • Considering the above facts, this study examines FES to strengthen rectus abdominis that are used for expiration of the ones with spastic cerebral palsy. Posture regulation and kinesiotherapy to improve the expiration capacity of cerebral palsy patients requires professional personnel and has tremendous limitation because it requires longterm training to achieve an exercise effect when it is applied in actual clinical trials.
  • To examine how applying FES to rectus abdominis affects breathing capabilities such as Tidal Volume and vital capacity of patients with spastic cerebral palsy, and how it effects muscle activity of rectus abdominis, subjects are recruited from six patients of spastic cerebral palsy (three males and three females), who are 14 to 16 years old students of a special school in Daegu. FES to rectus abdominis was provided for 20 minutes for a test and three times a week for six weeks. The results before application of FES and after that were each measured.
  • After the selection of six children with spastic cerebral palsy and who fit the subject criteria of this research, FES was performed on the rectus abdominis . Previous tests were taken, FES was applied for six weeks and then post-tests were executed. Test items are GMFM.
  • Since the number of subjects is restricted, this study has a limitation to normalize its results. Also, since the application of FES is limited to only rectus abdominis, the results of this research cannot fully indicate an increase of breathing capability that results from the operation of various factors.
  • Therefore, in this study, in a condition where test subjects lay straight and bent coxal articulation and knee joints to eliminate the tension of rectus abdominis, values of performance status of muscle activity were measured three times. From these, the total area of performance status of muscle activity was calculated and the mean of this was used as reference value.
  • It is a meaningful treatment method to strengthen rectus abdominis by using portable FES to increase the breathing capabilities of children with cerebral palsy. Therefore, this study examines how FES affects breathing capabilities such as Tidal Volume and Vital Capacity after it intensifies the rectus abdominis.
  • The reasons that the inspiration volume and that of pre-expiration of children with spastic cerebral palsy are much less than in normal children are that there is a weakness of expiratory muscle, or the dysfunction of it. Whereas previous studies reported only the increased vital capacity by FES to abdominal muscle and its effects on the respiratory capability such as strengthened expiration volume, this study measured the change of performance status of rectus abdominis during expiration as well as the breathing capability. Values of performance status of rectus abodmins were calculated after measured raw data primarily received a smoothing process with rectification and RMS 20ms and secondly took a band pass filtering process in a section of 10Hz-200Hz to eliminate the noise of measured values (Bender et al.

대상 데이터

  • Subjects are recruited from the children with spastic cerebral palsy in this study, who are 14 to 16 years old students of a special school in Daegu. Selection criteria is as follows.
  • Subjects of this research are children with spastic cerebral palsy and consist of three males and three females. Among categories of Gross Motor Function Measure (GMFM), sitting is 73.
  • Previous tests were taken, FES was applied for six weeks and then post-tests were executed. Test items are GMFM. Tidal volume, vital capacity and electromyogram of rectus abdominis.
  • Before the test, the proper breathing methods were explained to test subjects. Test subjects lay on a treatment mattress and attached a surface electrode of neuromuscular simulation system of model 6800s, made in the United States, to their abdominal muscle. Each electrode was attached just below part of cortical margins and a pubic part close to midline(Kandare et al.
  • To examine how applying FES to rectus abdominis affects breathing capabilities such as Tidal Volume and vital capacity of patients with spastic cerebral palsy, and how it effects muscle activity of rectus abdominis, subjects are recruited from six patients of spastic cerebral palsy (three males and three females), who are 14 to 16 years old students of a special school in Daegu. FES to rectus abdominis was provided for 20 minutes for a test and three times a week for six weeks.

이론/모형

  • Just before the test, and after the test, averages and Standard error of measurement were calculated. By using a nonpai'ametric method, Wilcoxon s matched pairs test, values before and after the test were compared. For the test of significance degree, a is 0.
  • To evaluate whether there is a possibility to test the breathing capacities of subjects in a sitting position, GMFM devised by Russell and Rosenbaum was used. GMFM mainly calibrates the motor capability of children with dysergia such as cerebral palsy(Rosenbaum et al, 1990 : Russell et al, 1989).
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