Objective: To investigate the relationship of musculus psoas major role and the formation of lumbar curvature.
目的：探讨腰大肌的作用及其与人类腰曲形成的关系。
The ranking of 10 muscles tenderness from Harbin White pigs indicated that M. psoas major was the most tender, which corresponded with previous work on beef meat tenderness.
对哈白猪10种不同肌肉的嫩度测定表明：腰大肌是最嫩的肌肉，与前人对肉牛不同肌肉嫩度的测定结果一致。
Walking brought along the lumbar vertebra to bend forward and rotate with the movement of right and left lower limbs. The main force to finish this movement came mainly from musculus psoas major.
步行带动腰椎向前弯曲并随左右下肢运动而旋转、侧弯，其主要作用力来自腰大肌。
Walking brought along the lumbar vertebra to bend forward and rotate with the movement of right and left lower limbs. The main force to finish this movement came mainly from musculus psoas major.
步行带动腰椎向前弯曲并随左右下肢运动而旋转、侧弯，其主要作用力来自腰大肌。
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