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Decreased functional capacity and muscle strength in elderly women with metabolic syndrome

Authors Vieira DCL, Tibana RA, Tajra V, da Cunha Nascimento D, de Farias DL, Silva ADO, Teixeira TG, Fonseca RMC, de Oliveira RJ, Mendes FA, Martins WR, Funghetto SS, de Oliveira Karnikowski MG, Navalta JW, Prestes J

Received 22 June 2013

Accepted for publication 22 July 2013

Published 9 October 2013 Volume 2013:8 Pages 1377—1386


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 5

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Denis Cesar Leite Vieira,1 Ramires Alsamir Tibana,1 Vitor Tajra,1 Dahan da Cunha Nascimento,1 Darlan Lopes de Farias,1 Alessandro de Oliveira Silva,1 Tatiane Gomes Teixeira,1 Romulo Maia Carlos Fonseca,2 Ricardo Jacó de Oliveira,2 Felipe Augusto dos Santos Mendes,2 Wagner Rodrigues Martins,2 Silvana Schwerz Funghetto,2 Margo Gomes de Oliveira Karnikowski,2 James Wilfred Navalta,3 Jonato Prestes1

1Graduate Program on Physical Education, Catholic University of Brasilia, Brasilia, Brazil; 2University of Brasilia, UnB, Brasilia, Brazil; 3Department of Kinesiology and Nutrition Sciences of the University of Nevada, Las Vegas, NV, USA

Purpose: To compare the metabolic parameters, flexibility, muscle strength, functional capacity, and lower limb muscle power of elderly women with and without the metabolic syndrome (MetS).
Methods: This cross-sectional study included 28 older women divided into two groups: with the MetS (n = 14; 67.3 ± 5.5 years; 67.5 ± 16.7 kg; 1.45 ± 0.35 m; 28.0 ± 7.6 kg/m2), and without the MetS (n = 14; 68.7 ± 5.3 years; 58.2 ± 9.9 kg; 1.55 ± 0.10 m; 24.3 ± 3.8 kg/m2). Body composition was evaluated by dual-energy X-ray absorptiometry and dynamic muscle strength was assessed by one-maximum repetition (1RM) tests in leg press, bench press and biceps curl exercises. Six-minute walk test, Timed Up and Go (TUG); 30-second sitting-rising; arm curl using a 2-kg dumbbell, sit-and-reach (flexibility), and vertical jump tests were performed.
Results: There was no difference between groups regarding age (P = 0.49), height (P = 0.46), body fat (%) (P = 0.19), systolic (P = 0.64), diastolic (P = 0.41) and mean blood pressure (P = 0.86), 30-second sitting-rising (P = 0.57), 30-s arm curl (P = 0.73), leg press 1RM (P = 0.51), bench press 1RM (P = 0.77), and biceps curl 1RM (P = 0.85). However, women without the MetS presented lower body mass (P = 0.001), body mass index (BMI) (P = 0.0001), waist circumference (P = 0.02), waist-to-height ratio (P = 0.02), fat body mass (kg) (P = 0.05), lean body mass (kg) (P = 0.02), blood glucose (P = 0.05), triglycerides (P = 0.03), Z-score for the MetS (P = 0.05), higher high-density lipoprotein-cholesterol (HDL-C) (P = 0.002), better performance on TUG (P = 0.01), flexibility (P = 0.03), six-minute walk test (P = 0.04), vertical jump (P = 0.05) and relative muscle strength for leg press (P = 0.03), bench press (P = 0.04) and biceps curl (P = 0.002) exercises as compared to women with the MetS.
Conclusion: Elderly women with the MetS have higher metabolic risk profile and lower functional capacity, muscle strength, lower limb power and flexibility as compared to women without the MetS. The evaluation of functional capacity may help to determine the degree of physical decline in older persons with the MetS, while exercise interventions should be encouraged.

Keywords: metabolic syndrome, functional capacity, muscle performance, aging

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