지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.12
- 수록면
- 691 - 702 (12page)
- DOI
- 10.5143/JESK.2018.37.6.691
이용수
초록· 키워드
오류제보하기
Objective: The purpose of this study was to determine the difference of motions using the new calculation method of COP area and to investigate the correlation with the change of the foot eversion.
Background: The quantitative analysis process on the data of COP revealed in the process of repetitive gait and running cycle is essentially required and through COP trajectories, the correlations between ground and feet can be effectively examined.
Method: Thirty young males participated in this study. They were asked to run on an instrumented treadmill (Bertec, USA) at speeds of 3.5m/s and 4.5m/s for running. A system of motion analysis cameras (Oqus 300, Qualisys, and Sweden) and pedar-X system (Novel GmbH, Germany) were used to collect joint angles and COP trajectories, and Shoelace Formula was used to calculate the area of multiple COP lines from running. The analysis variables were the area of COP, the COP range, the COP velocity, and the ankle joint eversion angle. The Pearson"s correlation coefficient was calculated to investigate the relations between variables.
Results: The running at 4.5m/s showed the smaller area of COP and the range of COP, but the greater velocity of COP (p <0.05) in comparison with the running at 3.5m/s. There was a positive correlation between the area of COP and the anteriorposterior range of COP (r =.350). Additionally, there was a negative correlation between the area of COP and the maximum eversion angle of ankle joint (r =-.418).
Conclusion: The findings indicate that the method using the Shoelace Formula to calculate the area of COP was able to determine the difference between running speeds and predict the maximum eversion angle of the ankle joint.
Application: Based the results, the area of COP trajectories newly presented in this study is judged to be used as a variable to predict running speed and the eversion angle of the ankle joint.
Background: The quantitative analysis process on the data of COP revealed in the process of repetitive gait and running cycle is essentially required and through COP trajectories, the correlations between ground and feet can be effectively examined.
Method: Thirty young males participated in this study. They were asked to run on an instrumented treadmill (Bertec, USA) at speeds of 3.5m/s and 4.5m/s for running. A system of motion analysis cameras (Oqus 300, Qualisys, and Sweden) and pedar-X system (Novel GmbH, Germany) were used to collect joint angles and COP trajectories, and Shoelace Formula was used to calculate the area of multiple COP lines from running. The analysis variables were the area of COP, the COP range, the COP velocity, and the ankle joint eversion angle. The Pearson"s correlation coefficient was calculated to investigate the relations between variables.
Results: The running at 4.5m/s showed the smaller area of COP and the range of COP, but the greater velocity of COP (p <0.05) in comparison with the running at 3.5m/s. There was a positive correlation between the area of COP and the anteriorposterior range of COP (r =.350). Additionally, there was a negative correlation between the area of COP and the maximum eversion angle of ankle joint (r =-.418).
Conclusion: The findings indicate that the method using the Shoelace Formula to calculate the area of COP was able to determine the difference between running speeds and predict the maximum eversion angle of the ankle joint.
Application: Based the results, the area of COP trajectories newly presented in this study is judged to be used as a variable to predict running speed and the eversion angle of the ankle joint.
목차
1. Introduction
2. Method
3. Results
4. Discussion
5. Conclusion
References
참고문헌 (42)
참고문헌 신청
[학술지(정기간행물)] - Alexander, I. / 1990 / Dynamic assessment of foot mechanics as an adjunct to orthotic prescription / The Biomechanics of the Foot and Ankle : 148 ~ 152
[학술지(정기간행물)] - Back, N.J. / 1997 / The Path of Center of Pressure (COP) of the Foot during Walking / Journal of Korean Academy of Rehabilitation Medicine 21 (4) : 762 ~ 771
[학술지(정기간행물)] - Braden, B. / 1986 / The surveyor's area formula / The College Mathematics Journal 17 (4) : 326 ~ 337
[학술지(정기간행물)] - Carroll, J.P. / 1993 / Nonstationary properties of postural sway / Journal of Biomechanics 26 (4-5) : 409 ~ 416
[학술지(정기간행물)] - Cavanagh, P.R. / 1980 / Ground reaction forces in distance running / Journal of Biomechanics 13 : 397 ~ 406
[학술지(정기간행물)] - Back, N.J. / 1997 / The Path of Center of Pressure (COP) of the Foot during Walking / Journal of Korean Academy of Rehabilitation Medicine 21 (4) : 762 ~ 771
[학술지(정기간행물)] - Braden, B. / 1986 / The surveyor's area formula / The College Mathematics Journal 17 (4) : 326 ~ 337
[학술지(정기간행물)] - Carroll, J.P. / 1993 / Nonstationary properties of postural sway / Journal of Biomechanics 26 (4-5) : 409 ~ 416
[학술지(정기간행물)] - Cavanagh, P.R. / 1980 / Ground reaction forces in distance running / Journal of Biomechanics 13 : 397 ~ 406
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