Movement of the lumbar spine is critical for maintenance of postural recovery following support surface perturbation.
People with chronic low back pain (CLBP) often report problems in maintaining balance which could be due to reduced lumbar motion and/or compromised proprioception. This study aims to investigate the effect of restricted lumbar spine mobility on postural steadiness and recovery in response to unexpected support surface perturbation.
Twenty participants without LBP were included and performed several sessions, with and without wearing a rigid thoracolumbar corset, which restricted lumbar motion, on a support surface with unexpected perturbations. Patients were instructed to regain upright posture as soon as possible after perturbation.
The results showed that wearing a corset (and so creating restricted lumbar motion) resulted in increased centre of pressure (COP) range, time taken for postural recovery and number of postural adjustments after perturbation. This suggests that movement of the lumbar spine is essential for efficient recovery of standing balance. Restricted motion of the lumbar spine in LBP patients could therefore cause balance problems. > From: Mok et al., Exp Brain Res. 231(3) (2013) 305-13. All rights reserved to Springer.
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