체간 조절을 통한 앉기 자세 교정이 경직형 뇌성마비 아동들의 호흡근과 음향학적 측정치들의 변화에 미치는 효과

• Published in: Han'guk Chŏnmun Mulli Ch'iryo Hakhoe chi = Journal of the Korean Academy of University Trained Physical Therapists Vol. 16; no. 2; pp. 16 - 23
• Main Authors: 김선희, Sun Hee Kim, 안종복, Jong Bok Ahn, 서혜정, Hye Jung Seo, 권도하, Do Ha Kwon
• Format: Journal Article
• Language: Korean
• Published: 한국전문물리치료학회 30.05.2009; Korean Academy Of University Trained Physical Therapy
• Subjects: Acoustic parameters; Adjusted sitting posture; Respiratory muscles; Spastic cerebral palsy; 물리치료학; Respiratory muscles; Acoustic parameters; Adjusted sitting posture; Spastic cerebral palsy
• ISSN: 1225-8962; 2287-982X

The purpose of this study was to investigate the effects postural changes on respiratory muscles and acoustic parameters of the children with spastic cerebral palsy. Nine children with spastic cerebral palsy who required assistance when walking were selected. The ages of the children ranged from 6 to 9 years old. The phonation of the sustained vowel /a/ and the voice qualities of each child such as fundamental frequency($F_0$; Hz), pitch variation (Jitter; %), amplitude variation (Shimmer; %) and noise to harmonic ratio (NHR) were analyzed by Multi-Dimensional Voice Program (MDVP). The muscle activity of three major respiratory muscles: pectoralis major muscle, upper trapezius muscle and rectus abdorminalis muscle, were measured by examining the root mean square (RMS) of the surface EMG to investigate the impact of changes in the adjusted sitting posture of each subject. However, the RMS of pectoralis major muscle showed a significant differences (p<.05). Secondly, there were no significant differences in $F_0$, Jitter and Shimmer between pre and post posture change, but there was a significant difference in NHR (p<.05). The data were collected in each individual; once prior and once after the sitting posture change. The data were analyzed by Wilcoxon signed ranks-test using SPSS version 14.0 for Windows. The findings of this study were as follows; Firstly, the RMS of upper trapezius and rectus abdorminalis muscle were not significant different between pre and post sitting posture changes. From the result, it is concluded that changes in the adjusted sitting posture decreases the abnormal respiratory patterns in the children with spastic cerebral palsy which is characterized by the hyperactivity of the respiratory muscles in breathing. Also, there is increased on the voice qualities in children with spastic cerebral palsy.