Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Analysis on the Effect of Lordosis Changes at Lumbar Joint using 3-dimensional Musculoskeletal Model

근골격계 모델을 이용한 요추전만 각도 변화가 요추 관절에 미치는 영향 분석

  • Bae, Tae-Soo (Korea Orthopedics & Rehabilitation Engineering Center) ;
  • Kim, Shin-Ki (Korea Orthopedics & Rehabilitation Engineering Center) ;
  • Ryu, Je-Chung (Korea Orthopedics & Rehabilitation Engineering Center) ;
  • Mun, Mu-Seong (Korea Orthopedics & Rehabilitation Engineering Center)
  • Published : 2009.10.01
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Abstract

It is important to consider lumbar lordotic angle for setup of training program in field of sports and rehabilitaton to prevent unexpected posture deviation and back pain. The purpose of this study was to analyze the biomechanical impact of the level of lumbar lordosis angle during isokinetic exercise through dynamic analysis using a 3-dimensional musculoskeletal model. We made each models for normal lordosis, excessive lordosis, lumbar kyphosis, and hypo-lordosis according to lordotic angle and inputted experimental data as initial values to perform inverse dynamic analysis. Comparing the joint torques, the largest torque of excessive lordosis was 16.6% larger and lumbar kyphosis was 11.7% less than normal lordosis. There existed no significant difference in the compressive intervertebral forces of each lumbar joint (p>0.05), but statistically significant difference in the anterioposterior shear force (p<0.05). For system energy lumbar kyphosis required the least and most energy during flexion and extension respectively. Therefore during the rehabilitation process, more efficient training will be possible by taking into consideration not simply weight and height but biomechanical effects on the skeletal muscle system according to lumbar lordosis angles.

Keywords

References

  1. Cyriax, J., "Textbook of orthopedic medicine Vol. 1. Diagnosis of soft tissue lesions 7th ed.," Bailli$\'{e}$re Tindall, pp. 711-725, 1978
  2. McKenzie, R. A., "The lumbar spine: Mechanical diagnosis and therapy," Spinal Publications, pp. 17-36, 1981
  3. Hultman, G., Saraste, H. and Ohlsen, H., "Anthropometry, spinal canal width, and flexibility of the spine and hamstring muscles in 45 55-year-old men with and without low back pain," J. Spinal Disord, Vol. 5, No. 3, pp. 245-253, 1992 https://doi.org/10.1097/00002517-199209000-00001
  4. Waddell, G. and Main, C. J., "Assessment of severity in low-back disorders," Spine, Vol. 9, No. 2, pp. 204-208, 1984 https://doi.org/10.1097/00007632-198403000-00012
  5. Christie, H. J., Kumar, S. and Warren, S. A., "Postural aberrations in low back pain," Arch. Phys. Med. Rehabil., Vol. 76, No. 3, pp. 218-224, 1995 https://doi.org/10.1016/S0003-9993(95)80604-0
  6. Farfan, H. F., "The biomechanical advantage of lordosis and hip extension for upright activity," Spine, Vol. 3, No. 4, pp. 336-342, 1978 https://doi.org/10.1097/00007632-197812000-00006
  7. Schenkman, M., Shipp, K. M., Chandler, J., Studenski, S. A. and Kuchibhatla, M., "Relationships between mobility of axial structures and physical performance," Physical Therapy, Vol. 76, No. 3, pp. 276-285, 1996 https://doi.org/10.1093/ptj/76.3.276
  8. White, A. A. and Panjabi, M. M., "Clinical Biomechanics of the Spine," Lippincott Williams & Wilkins, pp. 754-774, 1990
  9. Whitcome, K. K., Shapiro, L. J. and Lieberman, D. E., "Fetal Load and the evolution of lumbar lordosis in biopedal hominins," Nature, Vol. 450, No. 7172, pp. 1075-1078, 2007 https://doi.org/10.1038/nature06342
  10. Walker, M. L., Rothstein, J. L., Finucane, S. D. and Lamb, R. L., "Relationships between lumbar lordosis, pelvic tilt, and abdominal muscle performance," Physical Therapy, Vol. 67, No. 4, pp. 512-516, 1987 https://doi.org/10.1093/ptj/67.4.512
  11. Flint, M. M., "Relationship of the Gravity Line Test to Posture, Trunk Strength, and Hip-Trunk Flexibility of Elementary School Girls," Research Quarterly, Vol. 35, pp. 141-146, 1964
  12. Zatsiorsky, V. M., "Science and Practice of Strength Training," Human Kinetics Publishers, pp. 137-154, 1995
  13. Winters, D. A., "Biomechanics and Motor Control of Human Movement," John Wiley & Sons, pp. 51-74, 1990
  14. Schutte, L. M., Hayden, S. W. and Gage, J. R., "Lengths of hamstrings and psoas muscles during crouch gait: effects of femoral anteversion," J. Orthop. Res., Vol. 15, No. 4, pp. 615-621, 1997 https://doi.org/10.1002/jor.1100150419
  15. Bae, T. S., Kim, S. K. and Mun, M. S., "A Musculoskeletal model for biomechanical analysis of transfemoral amputees climbing stairs," International J. Prec. Eng. Manuf., Vol. 9, No. 1, pp. 30-33, 2008
  16. Winters, J. M., 'Hill-based muscle models: Asystems engineering perspective,' Springer-Verlag, pp. 69-93, 1990
  17. Janda, V., "Muscle strength in relation to muscle length, pain, and muscle imbalance," Churchill Livingstone, pp. 83-91, 1993