School of Exercise and Nutritional Sciences, College of Health and Human Services, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182-7251, United States.
Musculoskelet Sci Pract. 2017 Apr;28:25-31. doi: 10.1016/j.msksp.2016.12.017. Epub 2017 Jan 5.
BACKGROUND: Limited research exists on lumbar spine and lower extremity movement during functional tasks in people with and without low back pain (LBP). OBJECTIVE: To determine differences in lumbar spine and lower extremity kinematics in people with and without LBP during the down phase of a pick up task. DESIGN: Cross-sectional, observational study. METHOD: 35 people (14 M, 21 F, 26.9 ± 10.9 years, 24.8 ± 3.2 kg/m); 18 with and 17 without LBP were matched based on age, gender and BMI. Kinematics of the lumbar spine and lower extremities were measured using 3D motion capture, while subjects picked up an object off the floor. People with LBP were examined and assigned to movement-based LBP subgroups. Repeated measures ANOVA tests were conducted to determine the effect of group and region on lumbar spine and lower extremity kinematics. A secondary analysis was conducted to examine the effect of LBP subgroup on lumbar spine kinematics. RESULTS: Compared to controls, subjects with LBP displayed greater upper and less lower lumbar flexion (P < 0.05), and more lumbar flexion during the first 25% of the pick up task (P < 0.01). There were no group differences in frontal or axial plane lumbar spine kinematics. Subjects with LBP displayed more frontal plane movement at the knee than control subjects (P < 0.01). There were no significant effects of movement-based LBP subgroup on kinematics (P > 0.05). CONCLUSIONS: When evaluating movement during a functional task, the clinician should consider regional differences in the lumbar spine, pattern of movement, and lower extremity movement.
背景：在患有和不患有下腰痛（LBP）的人群中，针对功能任务下腰椎和下肢运动的研究有限。 目的：在拾物任务的下降阶段，确定患有和不患有 LBP 的人群之间腰椎和下肢运动学的差异。 设计：横断面、观察性研究。 方法：35 人（14 男，21 女，26.9±10.9 岁，24.8±3.2kg/m2）；18 名患有和 17 名不患有 LBP 的人根据年龄、性别和 BMI 进行匹配。使用 3D 运动捕捉测量腰椎和下肢的运动学，而受试者从地板上拾起物体。对患有 LBP 的人进行检查并根据运动相关的 LBP 亚组进行分配。进行重复测量方差分析测试，以确定组间和区域间对腰椎和下肢运动学的影响。进行二次分析以检查 LBP 亚组对腰椎运动学的影响。 结果：与对照组相比，患有 LBP 的受试者显示出更大的上腰椎和更小的下腰椎屈曲（P<0.05），并且在拾物任务的前 25%期间更多的腰椎屈曲（P<0.01）。组间在额状面或轴向腰椎运动学方面没有差异。患有 LBP 的受试者比对照组受试者在膝关节处有更多的额状面运动（P<0.01）。基于运动的 LBP 亚组对运动学没有显著影响（P>0.05）。 结论：在评估功能任务中的运动时，临床医生应考虑腰椎的区域差异、运动模式和下肢运动。
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