The influence of initial resting posture on range of motion of the lumbar spine

The aim of this study was to investigate the influence of initial resting posture on range of motion of the lumbar spine in 18 normal subjects. Subjects resting posture and active range of motion was measured using the CA-6000 Spinal Motion Analyser (OSI, USA) in five test positions, namely in flat...

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Bibliographic Details
Published in:Manual therapy 2001-08, Vol.6 (3), p.139-144
Main Authors: Coates, J.E., McGregor, A.H., Beith, I.D., Hughes, S.P.F.
Format: Article
Language:English
Subjects:
Adult
Analysis of Variance
Biomechanical Phenomena
Female
Humans
Linear Models
Lumbar Vertebrae - physiology
Male
Posture
Range of Motion, Articular
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Summary:The aim of this study was to investigate the influence of initial resting posture on range of motion of the lumbar spine in 18 normal subjects. Subjects resting posture and active range of motion was measured using the CA-6000 Spinal Motion Analyser (OSI, USA) in five test positions, namely in flat standing and with a variety of heel raises. Analysis showed that there was no significant correlation between subject's normal resting posture and active range of motion. However, when subjects resting posture was artificially altered with heel raises, significant effects on the active range of motion were demonstrated. Increasing heel height significantly influenced resting posture in the sagittal plane only. As heel height increased, the lumbar lordosis decreased and a significant reduction in the range of lumbar spine flexion (P
ISSN:1356-689X
1532-2769
DOI:10.1054/math.2001.0397