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국회도서관 홈으로 정보검색 소장정보 검색

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국문초록 9

ABSTRACT 11

I. 서론 13

II. 연구 배경 및 이론 16

A. 정상보행 16

B. 절단환자와 병적보행 19

C. 정량적 재활의 필요성 21

III. 연구 목적 22

IV. 연구 방법 24

A. 보행 특징에 따른 보행주기 분석 24

B. 보행 근전도 분석 28

C. 모의 비정상보행 33

D. 정량적 평가 알고리즘 구현 36

E. 정량적 평가 알고리즘 검증 40

V. 연구 결과 42

A. 보행주기분석 42

B. 정상 패턴과 모의 비정상 보행 근전도 패턴 분석 47

1. 정상보행의 근전도 패턴 47

2. 모의 비정상 보행의 근전도 패턴 53

C. 정량적 재활평가 알고리즘 제안 56

1. 고차함수법 56

2. 삼각함수법 64

D. 정량적 재활평가 알고리즘의 유효성 69

1. 고차함수법 69

2. 삼각함수법 72

VI. 고찰 77

VII. 결론 79

VIII. 참고문헌 81

List of Tables

Table 1. Gait cycle ratio 46

Table 2. Gait patterns ratio according to walking methods at quadriceps 55

Table 3. Gait patterns ratio according to walking methods at bicep femoris 55

Table 4. Composition ratio of EMG pattern by group 63

Table 5. The average value of the variable according to the EMG pattern in the quadriceps 68

Table 6. The average value of the variable according to the EMG pattern in the biceps femoris 68

Table 7. Validity of the proposed algorithm (high-order function) 71

Table 8. Coefficient of determination and variable A, B according to knee sphere of activity 75

Table 9. Validity of the proposed algorithm (periodic function) 76

List of Figures

Figure 1. Stance and swing in gait cycle 18

Figure 2. Stride & step 18

Figure 3. Low amputation region 20

Figure 4. Flow chart of this study 23

Figure 5. Produced tilt sensor module 26

Figure 6. Sensor mounting position 27

Figure 7. Electrode mounting position 30

Figure 8. Operating EMG parameter in time domain 31

Figure 9. Application of window function in STFT 32

Figure 10. Mounting position of laboratory equipment 34

Figure 11. Gait experiment 35

Figure 12. Form of dendrogram 38

Figure 13. Variable of high-order function at curve fitting 39

Figure 14. Variable of trigonometric function at curve fitting 39

Figure 15. Limit knee sphere of activity 41

Figure 16. Change in tilt during level-ground walking 44

Figure 17. One cycle output 45

Figure 18. EMG pattern according to gait cycle 49

Figure 19. IEMG pattern according to gait cycle in normal gait 50

Figure 20. EMG STFT during level ground walking 51

Figure 21. EMG mesh grid during level ground walking 52

Figure 22. IEMG pattern during abnormal gait 54

Figure 23. High-order function curve fitting according to pattern 57

Figure 24. Variable classification according to gait EMG pattern 59

Figure 25. Dendrogram using Ward methode 61

Figure 26. Classification of variable value by group 62

Figure 27. The curve fitting of trigonometrical function according to the pattern 65

Figure 28. A distribution chart of result in curve fitting 67

Figure 29. Grade according to knee sphere of activity 70

Figure 30. Compare coefficient of determination according to knee sphere of activity 73

Figure 31. Compare variable A according to knee sphere of activity 73

Figure 32. Compare variable B according to knee sphere of activity 74