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. 2008 Nov 18:9:152.
doi: 10.1186/1471-2474-9-152.

Regional differences in lumbar spinal posture and the influence of low back pain

Tim Mitchell  1 , Peter B O'Sullivan, Angus F Burnett, Leon Straker, Anne Smith
Affiliations

Regional differences in lumbar spinal posture and the influence of low back pain

Tim Mitchell et al. BMC Musculoskelet Disord. .

Abstract

Background: Spinal posture is commonly a focus in the assessment and clinical management of low back pain (LBP) patients. However, the link between spinal posture and LBP is not fully understood. Recent evidence suggests that considering regional, rather than total lumbar spine posture is important. The purpose of this study was to determine; if there are regional differences in habitual lumbar spine posture and movement, and if these findings are influenced by LBP.

Methods: One hundred and seventy female undergraduate nursing students, with and without LBP, participated in this cross-sectional study. Lower lumbar (LLx), Upper lumbar (ULx) and total lumbar (TLx) spine angles were measured using an electromagnetic tracking system in static postures and across a range of functional tasks.

Results: Regional differences in lumbar posture and movement were found. Mean LLx posture did not correlate with ULx posture in sitting (r = 0.036, p = 0.638), but showed a moderate inverse correlation with ULx posture in usual standing (r = -0.505, p < 0.001). Regional differences in range of motion from reference postures in sitting and standing were evident. BMI accounted for regional differences found in all sitting and some standing measures. LBP was not associated with differences in regional lumbar spine angles or range of motion, with the exception of maximal backward bending range of motion (F = 5.18, p = 0.007).

Conclusion: This study supports the concept of regional differences within the lumbar spine during common postures and movements. Global lumbar spine kinematics do not reflect regional lumbar spine kinematics, which has implications for interpretation of measures of spinal posture, motion and loading. BMI influenced regional lumbar posture and movement, possibly representing adaptation due to load.

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Figures

Figure 1
Figure 1
Test postures.
Figure 2
Figure 2
Spinal model used for the calculation of lumbar angles. LLx = lower lumbar; ULx = upper lumbar. Total lumbar angle is the angle formed between the tangents from the sensors at T12 and S2.
See this image and copyright information in PMC

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References

    1. Stansbury C, Lim T. Worker's Compensation in Western Australia Statistical Report 99/00 – 02/03. Perth, Australia; 2004.
    1. Waddell G. The Back Pain Revolution. 2. Edinburgh: Churchill Livingston; 2004. The Problem; pp. 1–7.
    1. Scannell J, McGill S. Lumbar posture – should it, and can it, be modified? A study of passive tissue stiffness and lumbar position during activities of daily living. Physical Therapy. 2003;83:907–917. - PubMed
    1. O'Sullivan P. Diagnosis and classification of chronic low back pain disorders: maladaptive movement and motor control impairments as underlying mechanism. Man Ther. 2005;10:242–255. doi: 10.1016/j.math.2005.07.001. - DOI - PubMed
    1. O'Sullivan P, Mitchell T, Bulich P, Waller R, Holte J. The relationship between posture and back muscle endurance in industrial workers with flexion-related low back pain. Man Ther. 2006;11:264–271. doi: 10.1016/j.math.2005.04.004. - DOI - PubMed

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