International Journal of Osteopathic Medicine

doi: http://dx.doi.org/10.1016/j.ijosm.2014.07.007

Abstract

Background

Somatic dysfunction of L5-S1 is believed to cause or worsen a rotation pattern in the pelvis, often combined with low back pain. This affects symmetry of motion amplitudes in lower joints, and could influence the gait pattern. This study was conducted to determine whether a somatic dysfunction of L5 has an influence on the gait pattern.

Objective

To investigate the correlation between the presence of a somatic dysfunction at L4-L5 and a rotation in the gait pattern.

Methods

30 participants with LBP and a somatic dysfunction of L5 were assessed by three examiners using established osteopathic tests. All participants had their static pelvic rotation measured using a digital measurement system, and their gait assessed using a plantar pressure device.

Results

No significant differences were found in the static position of the pelvis and the rotation of the feet between the control and testing group. Significant differences were found in the correlation between pelvic rotation and foot rotation during normal speed walking. Rotation to the right of the pelvis showed a significant negative correlation (Spearman’s r = -.527; p = .003), and rotation to the left of the pelvis showed a significant positive correlation (Spearman’s r = .586; p = .001) with the ipsilateral foot.

Conclusion

When assessed in a static position, somatic dysfunction of L5 had no influence on the position of the pelvis or the rotation of the feet. When assessed during locomotion, somatic dysfunction of L5 had a significant influence (p < .05) on the external rotation of the ipsilateral leg.

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