Title Page
Contents
Abstract 7
Introduction 9
Methods 10
2.1 Subjects 10
2.2. EMG recording and data processing 11
2.3. Procedures 13
2.5. Data analysis 16
Results 17
Discussion 19
References 23
영문 논문 제출서 27
영문 인준서 28
초록 29
APPENDIX 30