Namnik Neda, Salehi Reza, Shaterzadeh-Yazdi Mohammad Jafar, Esfandiarpour Fateme, Mehravar Mohammad, Orakifar Neda
Musculoskeletal Rehabilitation Research Center, Ahvaz Junndishapur University of Medical Sciences, Ahvaz, Iran.
Ortop Traumatol Rehabil. 2019 Jun 30;21(3):197-205. doi: 10.5604/01.3001.0013.2933.
Excessive and early lumbopelvic motion during functional tasks is associated with increased pain and symptoms in people with low back pain. The purpose of the current study was to compare lumbopelvic and lower extremity movements in two subgroups of chronic low back pain sufferers and healthy subjects during a stair descending task based on a movement system impairment model.
A clinical examination was conducted to assign people with low back pain to movement system impairment-based subgroups. A control group included 18 healthy subjects, a lumbar Rotation with Flexion group included 12 subjects, and a lumbar Rotation with Extension group included 16 subjects. Differences in kinematics data between the groups were recorded during a stair descending task using a 7-camera 3-dimensional motion capture system.
In the lumbar Rotation with Flexion group, the onset of lumbar movement occurred earlier than in the control group (p = 0.043). In the lumbar Rotation with Flexion group, axial and frontal plane rotation of the pelvis and lower extremity were significantly greater than in the control group. Mean differences between the lumbar Rotation with Extension and control group were minimal for the motion assessed.
Early and excessive lumbopelvic movement and more axial rotation in the lower extremities during a stair descending task were found in the lumbar Rotation with Flexion subgroup, which can be an important factor contributing to the development or persistence of low back pain in this group.
在功能性任务中，腰骨盆过度和过早运动与腰痛患者疼痛及症状加重相关。本研究的目的是基于运动系统损伤模型，比较慢性腰痛患者两个亚组和健康受试者在下楼梯任务中的腰骨盆及下肢运动情况。
进行临床检查，将腰痛患者分配到基于运动系统损伤的亚组。对照组包括18名健康受试者，腰椎屈曲伴旋转组包括12名受试者，腰椎伸展伴旋转组包括16名受试者。在使用7台摄像机的三维运动捕捉系统进行下楼梯任务期间，记录各组运动学数据的差异。
在腰椎屈曲伴旋转组中，腰椎运动的起始比对照组更早（p = 0.043）。在腰椎屈曲伴旋转组中，骨盆和下肢在矢状面和额状面的旋转明显大于对照组。对于所评估的运动，腰椎伸展伴旋转组与对照组之间的平均差异最小。
在腰椎屈曲伴旋转亚组中，在下楼梯任务期间发现腰骨盆运动过早且过度，下肢有更多矢状面旋转，这可能是该组腰痛发生或持续的一个重要因素。
