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Evaluation
of functional and neuromuscular chnges after exercise rehabilitation
for low back pain using a Swiss ball: a pilot study. J
Manipulative Physiol Ther. 2006Sep;29(7):550-60.
Marshall
PW, Murphy BA
Exercise Rehabilitation Clinic, Department of
Sport and Exercise Science, University of Auckland, Auckland, New
Zealand. p.marshall@auckland.ac.nz
OBJECTIVE: The purpose of this pilot study was to
use a multidimensional model to evaluate deficits in patients with low
back pain (LBP) over the course of a 12-week rehabilitation program
using the Swiss ball. METHODS: A within-subjects, repeated-measures
design based at the University exercise training clinic was used.
Twenty patients with chronic nonspecific LBP (12 men, 8 women; symptom
duration, 4.8 years; 38.8 +/- 12.1 years old; height, 1.76 +/- 0.06 m;
weight, 76.15 +/- 7.21 kg) participated in this study. Self-report
measures were the Oswestry Disability Index, Visual Analog Scale,
Medical Outcomes 12-Item Short Form Health Survey, and Self-Efficacy
For Exercise Scale. Physiologic measures were electromyography
measurement of feedforward muscle activation, flexion relaxation
phenomenon, myoelectric fatigue, endurance capacity measured by the
Sorenson test, and a modified sit-up test. Individuals performed 12
weeks of progressive exercise periodized every 4 weeks using a Swiss
ball. Outcome measures were assessed at baseline, 4 weeks, 8 weeks, 12
weeks, and at a 3-month follow-up. Repeated-measures analysis for
variance for time differences and regression analysis for variance in
Oswestry scores were performed. RESULTS: The Oswestry score for
self-reported disability significantly decreased over the intervention
(F(4,14) = 19.456, P < .001). Significant improvements in pain
and disability maintained to the 3 months of follow-up. There were
significant changes in perceptions of physical and mental well-being,
erector spinae fatigue, and flexion relaxation measures. Change in
flexion relaxation explained 38% of the improvement in Oswestry scores
at the 12-week measurement. CONCLUSIONS: This study showed that the
Swiss ball may be successfully used in a rehabilitation context for
patients with LBP. This pilot study has used a novel approach to assess
improvements during a rehabilitation program, which may be used in the
future to explain differences between different treatment modalities.
PMID: 16949944 [PubMed - indexed for MEDLINE]

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