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Nutrición Hospitalaria

versão On-line ISSN 1699-5198versão impressa ISSN 0212-1611

Resumo

ROSETY, Miguel Ángel et al. A short-term circuit resistance programme reduced epicardial fat in obese aged women. Nutr. Hosp. [online]. 2015, vol.32, n.5, pp.2193-2197. ISSN 1699-5198.  http://dx.doi.org/10.3305/nh.2015.32.5.9696.

Introduction: this study was conducted to ascertain the effects of resistance circuit training on epicardial adipose tissue (EAT) in obese aged women. A secondary objective was to assess muscle damage induced by supervised resistance training to confirm the intervention program was effective and safe. Methods: in the present interventional study, a total of 48 obese aged women were recruited from the community. Twenty-four of them were randomly assigned to perform a 12-week resistance circuit training programme, 3-days per week. This training was circularly performed in 6 stations: arm curl, leg extension, seated row, leg curl, triceps extension and leg press. The Jamar handgrip electronic dynamometer was used to assess maximal handgrip strength of the dominant hand. Two experienced observers assessed EAT by transthoracic two-dimensional echocardiography. Lastly, serum samples were analysed using one-step sandwich assays for creatine kinase activity (CK) and myoglobin (MB) concentration. Results: as was hypothesized, resistance training significantly reduced EAT thickness (8.4 ± 1.0 vs. 7.3 ± 1.3 mm; p = 0.014; d = 0.76) in the experimental group. Resistance training induced no significant changes in markers of muscle damage such as CK (181.6 ± 36.9 vs. 194.2 ± 37.8 U/l; p = 0.31) and MB (62.4 ± 7.1 vs. 67.3 ± 7.7 ng/ml; p = 0.26). No significant changes in any of the tested outcomes were found in the control group. Conclusion: resistance training reduced EAT in aged obese women. A secondary finding was that the training program was effective and safe. While current results are promising, future studies are still required to consolidate this approach in clinical application.

Palavras-chave : Aged; Resistance training; Visceral fat; Myoglobin; Creatin kinase.

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