Arvikar R J, Seireg A
Aviat Space Environ Med. 1978 Jan;49(1 Pt. 2):166-9.
A musculoskeletal model for the human spine developed by the authors is used for this study. The model takes into account the equilibrium of the vertebral bodies, the intervertebral discs and segments of the upper extremities under the influence of all major muscle and joint forces. Linear programming techniques are used to obtain the muscle load sharing and the disc pressures, based on a preselected linear criterion. The criterion is formulated as a combination of all muscles forces (F), joint forces and ligament action (R,M) with suitable weighting factors, and a minimization is sought of U = F + k1R + k2M. The model is used to study the effect of sudden forward or backward acceleration forces, such as during the impact situation, on the distribution of disc pressures in the spinal column in the unsupported seated posture.
作者开发的一种用于人类脊柱的肌肉骨骼模型被用于本研究。该模型考虑了在所有主要肌肉和关节力的影响下椎体、椎间盘和上肢各节段的平衡。基于预先选定的线性准则，采用线性规划技术来获取肌肉负荷分担和椎间盘压力。该准则被表述为所有肌肉力（F）、关节力和韧带作用（R，M）与合适加权因子的组合，并寻求使U = F + k1R + k2M最小化。该模型用于研究突然向前或向后加速力（如在撞击情况下）对无支撑坐姿时脊柱中椎间盘压力分布的影响。
