Effects of a 6-Week TRX Training Program with and without Curcumin Supplementation on Ground Reaction Forces and Center of Pressure in Overweight Women with Nonspecific Chronic Low Back Pain

Objective Chronic nonspecific low back pain (NSCLBP) is commonly associated with altered gait mechanics and impaired postural control, particularly in overweight and obese individuals. Resistance-based training such as TRX and anti-inflammatory supplements like curcumin may offer therapeutic benefits. This study investigated the effects of a six-week TRX training program combined with curcumin supplementation on ground reaction forces and center of pressure measures during walking and static standing in overweight and obese women with NSCLBP. Methods This quasi-experimental, pretest–posttest study included 36 overweight and obese women with NSCLBP, who were randomly assigned to three groups: control (n = 12), TRX training plus curcumin supplementation (n = 12), and TRX training plus placebo (n = 12). GRF variables, dynamic COP measures during walking, and static COP parameters were assessed at baseline and after the six-week intervention. The TRX training protocol was performed three times per week by both training groups, with either curcumin or placebo supplementation administered throughout the intervention period. Between-group differences in outcome changes (Δ = posttest − pretest) were analyzed using one-way analysis of variance, with the significance level set at P ≤ 0.05. Results The results indicated that six weeks of TRX training, irrespective of supplementation, led to significant reductions in selected GRF variables during walking compared with the control group (P ≤ 0.05). In contrast, no significant between-group differences were observed for dynamic COP measures during walking or for static postural COP parameters following the intervention. Conclusion A six-week TRX training program, with or without curcumin supplementation, effectively reduced ground reaction forces during walking in overweight and obese women with NSCLBP. However, neither TRX training nor curcumin supplementation produced significant changes in dynamic or static COP measures. These findings suggest that TRX-based resistance training may primarily influence kinetic aspects of gait rather than postural control mechanisms in this populationldren.