Correlations between resistance training‐induced changes on phase angle and biochemical markers in older women. (25th June 2018)

• Record Type: Journal Article
• Authors: Tomeleri, C. M.; Ribeiro, A. S.; Cavaglieri, C. R.; Deminice, R.; Schoenfeld, B. J.; Schiavoni, D.; dos Santos, L.; de Souza, M. F.; Antunes, M.; Venturini, D.; Barbosa, D. S.; Sardinha, L. B.; Cyrino, E. S.
• Is Part Of: Scandinavian journal of medicine & science in sports. Volume 28:Number 10(2018)
• Page Start: 2173
• Page End: 2182
• Publication Date: 2018-06-25
• Subjects: body composition -- inflammatory markers -- oxidative stress -- strength training; Sports medicine -- Periodicals; Sports -- Physiological aspects -- Periodicals; Sports -- Periodicals; 617.1027
• DOI: 10.1111/sms.13232
• Languages: English
• ISSNs: 0905-7188

Abstract

Abstract : 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.