Title |
Velocity of Lordosis Angle during Spinal Flexion and Extension
|
---|---|
Published in |
PLOS ONE, November 2012
|
DOI | 10.1371/journal.pone.0050135 |
Pubmed ID | |
Authors |
Tobias Consmüller, Antonius Rohlmann, Daniel Weinland, Claudia Druschel, Georg N. Duda, William R. Taylor |
Abstract |
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°/s (20-35 years), 100°/s (36-50 years) and 83°/s (51-75 years). For extension, the corresponding mean RoKs were 73°/s, 57°/s and 47°/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. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 1 | 2% |
Austria | 1 | 2% |
Unknown | 55 | 96% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 13 | 23% |
Student > Master | 12 | 21% |
Student > Ph. D. Student | 8 | 14% |
Student > Bachelor | 5 | 9% |
Other | 5 | 9% |
Other | 7 | 12% |
Unknown | 7 | 12% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 16 | 28% |
Engineering | 13 | 23% |
Sports and Recreations | 6 | 11% |
Nursing and Health Professions | 5 | 9% |
Agricultural and Biological Sciences | 2 | 4% |
Other | 4 | 7% |
Unknown | 11 | 19% |