표제지
목차
국문초록 8
I. 서론 9
II. 프리웨이트 동작분석시스템 설계 11
1. 프리웨이트운동 동작분석장치 설계방법 11
2. 로드셀 적용 14
3. FSR 필터 설계 20
III. 프리웨이트운동의 분석방법 25
1. 스쿼트운동 분석방법 25
2. 런지운동 분석방법 27
IV. 실험결과 29
1. 스쿼트운동 분석 결과 30
2. 런지운동 분석 결과 35
V. 결론 39
참고문헌 40
ABSTRACT 43
Table 1. Specification of loadcell sensors 17
Fig. 1. Design method of the free-weight exercise equipment 12
Fig. 2. Detection data flow with 4 Point load cell 13
Fig. 3. Foot plate sensor position 18
Fig. 4. Wheatstone bridge circuit for load cell sensor 19
Fig. 5. Dynamic signal process flows with 4 point load cell 20
Fig. 6. Voltage and frequency ranges of bio-potential signals 21
Fig. 7. Sallen-Key Low-Pass Filter Circuit 23
Fig. 8. Simulation results of proposed lowpass filter 24
Fig. 9. Force distribution of the squat exercise position 26
Fig. 10. Force distribution of the lunge exercise position 27
Fig. 11. Force distribution of the lunge exercise position 28
Fig. 12. Output detection waveform of optimal squat movement posture 30
Fig. 13. Error squat exercise of forward knee motion 31
Fig. 14. Error squat exercise of inward knee motion 32
Fig. 15. Error waveform, output waveform of outward knee motion 33
Fig. 16. Fault action, output waveform with left trunk deviation 34
Fig. 17. Optimal lunge exercise 35
Fig. 18. Error lunge exercise of inward knee motion 36
Fig. 19. Error lunge exercise of bending waist 37
Fig. 20. Error lunge exercise of eccentric bending waist 38