Soderberg G L, Barr J O
Spine (Phila Pa 1976). 1983 Jan-Feb;8(1):79-85. doi: 10.1097/00007632-198301000-00014.
The purpose of this study was to use electromyography to determine the level and pattern of muscle activity of the rectus abdominus and T10, L1, and L3 erector spinae muscle in healthy subjects and patients with chronic low-back dysfunction during various postures and activities. Statistically significant differences in erector spinae activities were found between groups for the Valsalva maneuver and for portions of the sit-up exercise. Comparisons between the 4.5-kg and 16-kg lifts completed with bent and straight knees showed few differences during actual lifts, but the patients with chronic dysfunction maintained an increased level of activity when lifts had been completed.
本研究的目的是利用肌电图来确定健康受试者以及患有慢性下背部功能障碍的患者在各种姿势和活动中腹直肌以及胸10、腰1和腰3竖脊肌的肌肉活动水平和模式。在瓦尔萨尔瓦动作和仰卧起坐运动的部分过程中，发现两组之间竖脊肌活动存在统计学上的显著差异。对屈膝和直膝状态下完成的4.5千克和16千克举重进行比较，结果显示在实际举重过程中差异不大，但慢性功能障碍患者在完成举重后活动水平持续升高。
