PURPOSE: This study examined the effects of integrated Neurac vibration during side-lying bridge exercise using a sling system on pain, strength, and balance in patients with chronic low back pain (LBP). SUBJECTS AND METHODS: A total of 30 patients were randomly assigned to experimental (EG; n = 15) or control groups (CG; n = 15). Both groups performed side-lying bridge exercise; however, the EG group also received Neurac vibration during exercise. Outcome measures included perceived pain level, asymmetry of weight distribution, asymmetry of hip abductor strength (AHAS), and static balance in one-leg standing. A 2x2 repeated-measures analysis of variance was used to determine main effects and interaction for each parameter. RESULTS: Significant interaction effects were found between group and time factors for all parameters. Between-group comparisons revealed significant differences in observed changes for all parameters (p < 0.05). In within-group comparisons, EG showed significant changes in all parameters after intervention (p < 0.05); however, significant changes were only found for pain and AHAS in the CG (p < 0.05). Pain score showed greatest effect size (d = 0.77) among all parameters, indicating a moderate effect of intervention. CONCLUSION: The side-lying bridge exercise on a sling system may alleviate pain and improve strength and balance in patients with chronic LBP, with more favorable effects when Neurac vibration is integrated into the exercise plan.

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