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Purpose The purpose of the present study was to examine the effects of extracorporeal shockwave therapy (ESWT) for patients with chronic low back pain and their dynamic balance ability. Subjects Twenty-eight patients with chronic low back were divided into an extracorporeal shockwave therapy group (ESWTG: n=13) and a conservative physical therapy group (CPTG, n=15). Methods An exercise program that included Williams' exercises and McKenzie's exercises was performed by both groups. The program was implemented twice a week for six weeks. The visual analog scale (VAS) was used to measure the chronic low back pain of the patients. Their dynamic balance ability was measured with BioRescue. Results The within-group comparison of the VAS of the ESWTG and the CPTG showed significant improvements after the intervention. In the VAS comparison between the groups after the treatment, the ESWTG showed a significantly larger improvement. In the within-group comparison of dynamic balance ability, the ESWTG showed significant improvements after the intervention in SAPLS, SAPRS, SAPFS, SAPBS, and TSA, and the CPTG showed significant improvements in SAPLS and SAPBS. In the between-group comparison of the dynamic balance ability after the treatment, the ESWTG showed significantly larger improvements in their SAPLS, SAPRS, SAPFS, and TSA. Conclusion The exercise program combined with the ESWT relieved chronic back pain more than the exercise program combined with the CPT. The former was also more effective at improving the patients' dynamic balance ability in terms of SAPLS, SAPRS, SAPFS, and TSA.
Lee et al. (Wed,) studied this question.