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Correlations between resistance training‐induced changes on phase angle and biochemical markers in older women

2018; Wiley; Volume: 28; Issue: 10 Linguagem: Inglês

10.1111/sms.13232

1600-0838

Crisieli M. Tomeleri, Alex S. Ribeiro, Cláudia Regina Cavaglieri, Rafael Deminice, Brad J. Schöenfeld, Durcelina Schiavoni Bortoloti, Leandro dos Santos, Mariana Ferreira de Souza, Mónica Antunes, Danielle Venturini, Décio Sabbatini Barbosa, Luís B. Sardinha, Edílson Serpeloni Cyrino,

Climate Change and Health Impacts

The main purpose of this study was to investigate the effects of 12 weeks of resistance training ( RT ) on phase angle (PhA), inflammatory and oxidative stress biomarkers, and to evaluate whether these RT ‐induced adaptations are related to PhA changes. Fifty‐one older women (70.6 ± 5.1 years; 26.9 ± 4.2 kg/m 2 ) were randomly allocated into a training group ( TG ) that performed 12‐week RT or a nonexercising control group ( CG ). The PhA (Xitron), body composition ( DXA ), and blood sample measurements (after a 12 hours fast) were performed before and after the intervention. The TG showed a significant ( P < .05) increase in PhA ( TG : +7.4±5.9% vs CG : −3.6 ± 8.8%), and interleukin‐10 ( IL ‐10; TG : +51.8 ± 71.1% vs CG : −46.6 ± 38.0%), and a decrease in tumor necrosis factor alpha ( TNF ‐α; TG : −15.2 ± 11.1% vs CG : +6.9±17.7%), interleukin‐6 ( IL ‐6; TG : −17.9 ± 17.8% vs CG : +6.1 ± 24.8%), and C‐reactive protein ( CRP ; TG : −24.1 ± 19.9% vs CG : +43.8 ± 31.1%). Moreover, TG upregulated catalase ( TG : +11.4 ± 15.0% vs CG : −6.7 ± 10.2%). Changes in TNF ‐α ( r = −.71), CRP ( r = −.65), lower advanced oxidation protein products ( r = −.55), and catalase ( r = +.73) after RT were correlated with changes in PhA ( P < .05). These results suggest that RT improves PhA, inflammatory and oxidative stress biomarkers, and the changes in inflammatory and oxidative damage markers are correlated with changes in PhA.