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.
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초록· 키워드
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There are many functional methods for estimating the mean axis of rotation of a joint. However, it is still a controversial issue which method is superior. The purpose of this study was to compare functional methods for estimated axes of rotation from synthetic data. The comparison was made in terms of suitabilities on describing humans in sports. For a more practical situation, the axis error as well as measurement and marker movement error were applied to generated data. Simulations having 1000 times of 80 rotational displacements were performed. The functional methods used in the study were two transformation methods, two fitting methods, and one more transformation method called M. The M method is a combination of S$\ddot{o}$derk & Wedin(1993) and Mardia & Jupp(2000). Another factor of the study was angular velocity with levels of .01, .025, .05, .5 and 1 rad/s. The method M resulted in unbiased, stable, and consistent axis of rotation vectors in all levels of angular velocity except .01 rad/s. Therefore, the method M had the highest validity and reliability of all the methods. The fitting methods were very sensitive in small angular velocities and stable only in the velocities of more than .5 rad/s. The most suitable method for analyzing human motion by using marker photogrammetry is M.
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참고문헌 (46)
참고문헌 신청
Aissaoui, R. / 2004 / Validation of four major algorithms for estimating the instanta-neous helical axis with miniature triaxial gyroscope / Proceedings of the 26th Annual International Conference of the IEEE EMBS 1(5):2442~2445
Asano, T. / 2005 / The functional flexion-extension axis of the knee corresponds to the surgical epicondylar axis / Journal of Arthroplasty 20:1060~1067
Besier, T. F. / 2003 / Repeatability of gait data using a functional hip joint centre and a mean helical axis / Journal of Biomechanics 36:1159~1168
Brownhill, J. R. / 2006 / Surgeon accuracy in the selec-tion of the flexionextension axis of the elbow: An in vitro study / Journal of Shoulder and Elbow Surgery 15:451~456
Cappello, A. / 2005 / Soft tissue artefacts compensation in knee kinematics by double anatomical landmark calibration : Performance of a novel method during selected motor tasks / IEEE Transactions on Biomedical Engineering 52:992~998
Asano, T. / 2005 / The functional flexion-extension axis of the knee corresponds to the surgical epicondylar axis / Journal of Arthroplasty 20:1060~1067
Besier, T. F. / 2003 / Repeatability of gait data using a functional hip joint centre and a mean helical axis / Journal of Biomechanics 36:1159~1168
Brownhill, J. R. / 2006 / Surgeon accuracy in the selec-tion of the flexionextension axis of the elbow: An in vitro study / Journal of Shoulder and Elbow Surgery 15:451~456
Cappello, A. / 2005 / Soft tissue artefacts compensation in knee kinematics by double anatomical landmark calibration : Performance of a novel method during selected motor tasks / IEEE Transactions on Biomedical Engineering 52:992~998
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