4Nicholas R E, Georgina H, Rachel E, et al. A 3D motion analysis study comparing the effectiveness of cervical spine orthoses at restricting spinal motion through physiological ranges[J]. Eur Spine J, 2013, 22 (Suppl 1):S10 -S15.
5Lee Y H, Chiou W K, Chen W J, et al. Predictive model of intersegmental mobility of lumbar spine in the sagittal plane from skin markers[J]. Clinical Biomechanics, 1995, 10(4):13-20.
6Crawford N R, Yamaguchi G T, Dickman C A. Methods for determining spinal flexion/extension, lateral bending, and axial rotation from marker coordinate data: analysis and refinement[J]. Human Movement Science, 1996, 15:55-78.
7Hyunho K, Sang H S, Jeong K K, et al. Cervical coupling motion characteristics in healthy people using a wireless inertial measurement unit[J]. Evidence-Based Complementary and Alternative Medicine Volume, 2013:1 -8.
8William J A, William F D, Joon Y L, et al. Cervical spine intervertebral kinematics with respect to the head are different during flexion and extension motions[J]. Journal of Biomechanics, 2013, 46:1472-1475.
9Shyi K W, Howard H C, Li C K, et al. The feasibility of a video-based motion analysis system in measuring the segmental movements between upper and lower cervical spine[J]. Gait & Posture, 2007, 26:161-166.
10Raymond Y L, Judi L, Eric H F. A real-time gyroscopic system for three-dimensional measurement of lumbar spine motion[J]. Medical Engineering & Physics, 2003, 25:817- 824.
