The short-term effects of balneotherapy on pain, disability and fatigue in patients with chronic low back pain treated with physical therapy: A randomized controlled trial

Abstract

ObjectiveThis study aimed to compare whether there are positive effects of balneotherapy(BT) on pain, quality of life and disability of individuals receiving physical therapy(PT) for chronic low back pain and to examine the effect of body mass index(BMI) on treatment. Materials and methodThis prospective, controlled, single blind study was conducted. Patients were randomized into two groups through a simple randomization in a 1:1 ratio. The clinician and biostatistics expert were blinded. PT group was applied PT, BT + PT group was applied PT + BT. All patients were included in the study for 3 weeks (total of 15 sessions, 5 days per week). All patients applied hot pack, transcutaneous electrical nerve stimulation and ultrasound. Patients in the BT + PT group applied BT in thermo mineralized water pool (20 min at 38−40 °C). Assessments were made using Pain-Visual Analog Scale(VAS), EQ-5D-3 L Scale(EQ5), EQ-VAS, Functional Assessment of Chronic Illness Therapy-Fatigue(FACIT-F), Roland-Morris Disability Questionnaire(RMDQ) and Quebec Back Pain Disability Scale(QBPDS) at the beginning (W0) and end (W3) of treatment. While performing statistical analysis, patients were divided into 3 categories of BMI1(18.5–24.9 kg/m2), BMI2 (25.0–29.9 kg/m2) and BMI3(≥30.0 kg/m2). Results270 patients were randomized. 129 patients in PT group and 133 patients in PT + BT group completed the study. In the BT + PT group, there were increases in the EQ5 and EQ-VAS variables and decreases in all other variables compared to the PT group which were found to be statistically significant (for QBPDS p < 0.05, the others p < 0.01). The differences in all variables W0 and W3 were at least half reductions and increases which were found to be statistically significant (p < 0.01). In terms of BMI, there were significant differences for all groups, especially BMI3 had higher means for all variables apart from EQ5 and EQ-VAS than the other two categories. BMI1 was the BMI category with highest means for EQ5 and EQ-VAS. The Group × Time interaction was found to be statistically significant for Pain-VAS, EQ5, EQ-VAS, FACIT-F, QBPDS and RMDQ(p < 0.01). For Pain-VAS, the effect of the Group × Time × BMI interaction was found to be statistically significant(p < 0.05). ConclusionBT plus PT was more effective than PT. BT may have positive contributions to reducing pain, functionality of patients, quality of life, fatigue and disability status.