Velocity of Lordosis Angle during Spinal Flexion and Extension

被引:32
作者
Consmueller, Tobias [2 ]
Rohlmann, Antonius [1 ]
Weinland, Daniel [2 ]
Druschel, Claudia [3 ]
Duda, Georg N. [1 ]
Taylor, William R. [1 ]
机构
[1] Charite Univ Med Berlin, Julius Wolff Inst, Berlin, Germany
[2] Epion Med GmbH, Potsdam, Germany
[3] Charite Univ Med Berlin, Ctr Musculoskeletal Surg, Berlin, Germany
关键词
LOW-BACK-PAIN; LUMBAR SPINE; MOTION CHARACTERISTICS; FLEXIBILITY; SYSTEM;
D O I
10.1371/journal.pone.0050135
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
070301 [无机化学]; 070403 [天体物理学]; 070507 [自然资源与国土空间规划学]; 090105 [作物生产系统与生态工程];
摘要
The importance of functional parameters for evaluating the severity of low back pain is gaining clinical recognition, with evidence suggesting that the angular velocity of lordosis is critical for identification of musculoskeletal deficits. However, there is a lack of data regarding the range of functional kinematics (RoKs), particularly which include the changing shape and curvature of the spine. We address this deficit by characterising the angular velocity of lordosis throughout the thoracolumbar spine according to age and gender. The velocity of lumbar back shape changes was measured using Epionics SPINE during maximum flexion and extension activities in 429 asymptomatic volunteers. The difference between maximum positive and negative velocities represented the RoKs. The mean RoKs for flexion decreased with age; 114 degrees/s (20-35 years), 100 degrees/s (36-50 years) and 83 degrees/s (51-75 years). For extension, the corresponding mean RoKs were 73 degrees/s, 57 degrees/s and 47 degrees/s. ANCOVA analyses revealed that age and gender had the largest influence on the RoKs (p<0.05). The Epionics SPINE system allows the rapid assessment of functional kinematics in the lumbar spine. The results of this study now serve as normative data for comparison to patients with spinal pathology or after surgical treatment.
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页数:7
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