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Web-based exercise versus supervised exercise for decreasing visceral adipose tissue in older adults with central obesity: a randomized controlled trial.

ABSTRACT: BACKGROUND:Visceral adipose tissue (VAT) is a strong risk factor for cardiovascular disease and increases with age. While supervised exercise (SE) may be an effective approach, web-based exercise (WE) have other advantages such as being more readily accessible. Therefore, we evaluated the effects of WE on VAT, body composition and cardiometabolic risk markers in centrally obese older adults and compared the effects of WE to SE. We also explored the feasibility of WE. METHODS:In a randomized controlled trial conducted in Umeå, Sweden during January 2018 - November 2018, N?=?77, 70-year-old men and women with central obesity (>?1?kg VAT for women, >?2?kg for men) were randomized to an intervention group (n?=?38) and a wait-list control group (n?=?39). The intervention group received 10?weeks of SE while the wait-list control group lived as usual. Following a 10-week wash-out-period, the wait-list control group received 10?weeks of WE. The primary outcome was changes in VAT. Secondary outcomes included changes in fat mass (FM), lean body mass (LBM), blood lipids, fasting blood glucose. Additionally, we explored the feasibility of WE defined as adherence and participant experiences. RESULTS:WE had no significant effect on VAT (P?=?0.5), although it decreased FM by 450?g (95% confidence interval [CI], 37 to 836, P??4 on a scale of 1-5. Comparing SE to WE, there was no significant difference in decrease of VAT (Cohen's ? effect size [ES], 0.5, 95% CI, -?24 to 223, P?=?0.11), although SE decreased FM by 619?g (ES, 0.5, 95% CI, 22 to 1215, P?

SUBMITTER: Ballin M

PROVIDER: S-EPMC7216357 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Web-based exercise versus supervised exercise for decreasing visceral adipose tissue in older adults with central obesity: a randomized controlled trial.

Ballin Marcel M Hult Andreas A Björk Sabine S Lundberg Emmy E Nordström Peter P Nordström Anna A

BMC geriatrics 20200512 1

<h4>Background</h4>Visceral adipose tissue (VAT) is a strong risk factor for cardiovascular disease and increases with age. While supervised exercise (SE) may be an effective approach, web-based exercise (WE) have other advantages such as being more readily accessible. Therefore, we evaluated the effects of WE on VAT, body composition and cardiometabolic risk markers in centrally obese older adults and compared the effects of WE to SE. We also explored the feasibility of WE.<h4>Methods</h4>In a ...[more]

PMID: 32398024

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Project description:Abstract: Background: The severity of visceral adipose tissue (VAT) inflammation in individuals with obesity is thought to signify obesity sub-phenotype(s) associated with higher cardiometabolic risk. Yet, this tissue is not accessible for direct sampling in the non-surgical patient. We hypothesized that circulating miRNAs (circ-miRs) could serve as biomarkers to distinguish human obesity subgroups with high or low extent of VAT-inflammation. Methods: Discovery and validation cohorts of patients living with obesity undergoing bariatric surgery (n=35 and 51, respectively) were included. VAT inflammation was classified into low/high based on an expression score derived from the mRNA levels of TNFA, IL6 and CCL2 (determined by rtPCR). Differentially-expressed circ-miRs were identified, and their discriminative power to detect low/high VAT inflammation was assessed by ROC-AUC analysis. Results: Fifty three out of 263 circ-miRs (20%) were associated with high VAT inflammation according to Mann-Whitney analysis in the discovery cohort. Of those, 12 (12/53=23%) were differentially expressed according to Deseq2, and 6 significantly discriminated between high and low VAT inflammation with ROC-AUC>0.8. Of the resulting 5 circ-miRs that were differentially abundant in all three statistical approaches, 3 were unaffected by hemolysis and validated in an independent cohort. Circ-miRs 181b-5p, 1306-3p, and 3138 combined with HOMA-IR exhibited ROC-AUC of 0.951 (95%CI:0.865-1) and 0.808 (95%CI:0.654-0.963) in the discovery and validation cohorts, respectively, providing strong discriminative power between participants with low versus high VAT inflammation. Predicted target genes of these miRNAs are enriched in pathways of insulin and inflammatory signaling, circadian entrainment, and cellular senescence. Conclusions: Circ-miRs that identify patients with low versus high VAT inflammation constitute a putative tool to improve personalized care of patients with obesity.

Dataset Information

Web-based exercise versus supervised exercise for decreasing visceral adipose tissue in older adults with central obesity: a randomized controlled trial.

Publications

Web-based exercise versus supervised exercise for decreasing visceral adipose tissue in older adults with central obesity: a randomized controlled trial.

Similar Datasets

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