Non-linear resistance training reduces inflammatory biomarkers in persons living with HIV: A randomized controlled trial.

The purpose of this study is to analyse the effect of 12 weeks of non-linear resistance training (NLRT) on anthropometry, muscle strength and inflammatory biomarkers in persons infected with human immunodeficiency virus (PIHIV). Thirty previously sedentary PIHIVs were randomized into the NLRT (n = 15) and control (CON, n = 15) groups. NLRT group were submitted to 12 weeks of training, whereas the CON group maintained their daily habits. At baseline and after 12 weeks, both groups underwent anthropometric evaluations and blood sampling for the analysis of inflammatory biomarkers. Analysis of covariance using preintervention values as covariate was performed to determine the effects of exercise on anthropometry, muscle strength, cytokines levels and T cells. Significance was set at p < 0.05. After 12 weeks of intervention, there was a decrease in subcutaneous body fat (p < .0001), neck, abdomen and waist circumferences (p < .05), waist-to-hip ratio (p = .009), blood levels of interleukin (IL)-1β (p = .029), IL-6 (p = .005), IL-8 (p = .010), and tumour necrosis factor (TNF)-α (p = .001) and an increase in muscle strength (p < .0001), IL-10 levels (p = .030) and CD4(+) (p = .004) and CD8(+) (p < .0001) counts in the NLRT compared to CON group. Twelve weeks of NLRT promoted positive changes in the body fat, body circumferences, muscular strength and inflammatory profile in PIHIV.