THE INTERSEGMENTAL AND MULTISEGMENTAL MUSCLES OF THE LUMBAR SPINE - A BIOMECHANICAL MODEL COMPARING LATERAL STABILIZING POTENTIAL

被引：206

作者：

CRISCO, JJ

PANJABI, MM

机构：

[1] Biomechanics Laboratory, Department of Orthopaedics and Rehabilitation, Yale University Medical School, New Haven, CT

来源：

SPINE | 1991年 / 16卷 / 07期

关键词：

Model; Muscles; Spine; Stability;

D O I：

10.1097/00007632-199107000-00018

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

The intersegmental and multisegmental musculature of the lumbar spine was studied in a biomechanical model to compare their lateral stabilizing potential. By approximating the active and passive behavior of the stretch reflex as a variable stiffness spring whose stiffness was proportional to activation, the critical muscle stiffness required for mechanical stability was calculated. The model demonstrated that the intersegmental muscles were the least efficient at laterally stabilizing the spine. At any given load, multisegmental muscles were more efficient, and their efficiency increased with the number of segments spanned. The most efficient muscles were those that originated from the pelvis, spanning the maximum number of segments. The muscular model was unstable, regardless of the muscular stiffness, when any vertebral segment was devoid of muscle. Moreover, when the load on the spine is increased, buckling can be prevented most efficiently with the pelvic muscles and least efficiently with the intersegmental muscles.

引用

页码：793 / 799

页数：7

共 32 条

[1] Agarwal G.C., Gottlieb G.L., Oscillation of the human ankle joint in response to applied sinusoidal torque on the foot, J Physiol (Lond), 268, pp. 151-176, (1977)
[2] An K.N., Hui F.C., Morrey B.F., Linscheid R.L., Chao E.Y., Muscles across the elbow joint: A biomechanical analysis, J Biomech, 4, 10, pp. 659-669, (1981)
[3] Basmajian J.V., Deluca C., Muscles Alive: Their Function Revealed by Electromyography, (1982)
[4] Bergmark A., Mechanical stability of the human lumbar spine, Lund Institute of Technology, Department of Solid Mechanics, Lund, (1987)
[5] Bogduk N., Twomey L.T., Clinical Anatomy of the Lumbar Spine, (1987)
[6] Broberg K.B., The mechanical behavior of the spinal system. Report from the Division of Solid Mechanics, Lund Institute of Technology, Lund, Sweden, (1981)
[7] Cannon S.C., Zahalak G.I., The mechanical behavior of active human skeletal muscle in small oscillations, J Biomech, 15, 2, pp. 111-121, (1982)
[8] Cavagna G.A., Elastic bounce of the body, J Appl Physiol, 29, pp. 279-282, (1970)
[9] Crisco J.J., The biomechanical stability of the human lumbar spine: Experimental and theoretical investigations [Doctoral dissertation], Yale University, (1989)
[10] Donisch E.W., Basmajian J.V., Electromyography of deep back muscles in man, Am J Anat, 133, pp. 25-36, (1972)

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