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ORIGINAL ARTICLE  EXERCISE PHYSIOLOGY AND BIOMECHANICS 

The Journal of Sports Medicine and Physical Fitness 2018 July-August;58(7-8):1029-36

DOI: 10.23736/S0022-4707.17.06903-1

Copyright © 2017 EDIZIONI MINERVA MEDICA

lingua: Inglese

Circuit strength training improves muscle strength, functional performance and anthropometric indicators in sedentary elderly women

Mauro L. MAZINI FILHO 1, Felipe J. AIDAR 2, 3 , Dihogo GAMA de MATOS 4, Osvaldo COSTA MOREIRA 5, 6, Cláudia E. PATROCÍNIO de OLIVEIRA 6, 7, Gabriela REZENDE de OLIVEIRA VENTURINI 8, Victor MAGALHÃES CURTY 9, Henrique MENEZES TOUGUINHA 10, 11, Maria E. CAPUTO FERREIRA 1

1 Department of Physical Education, Federal University of Juiz de Fora, Juiz de Fora, Brazil; 2 Department of Physical Education, Federal University of Sergipe, São Cristóvão, Brazil; 3 Graduate Program in Physical Education, Federal University of Sergipe, São Cristóvão, Brazil; 4 Department of Sports Science, Exercise and Health of the Trás-os-Montes e Alto Douro University, Vila Real, Portugal; 5 Institute of Biological Sciences and Health, Federal University of Viçosa, Campus Florestal, Brazil; 6 Institute of Biomedicine, University of Leon, Leon, Spain; 7 Department of Physical Education, Federal University of Viçosa, Campus Viçosa, Brazil; 8 Laboratory of Physical Activity and Health Promotion, State University of Rio de Janeiro, Rio de Janeiro, Brazil; 9 Department of Physiological Sciences, Federal University of Espirito Santo, Espirito Santo, Brazil; 10 Department of Physical Education, Faculty of São Lourenço, São Lourenço, Brazil; 11 Department of Biomedical Engineering, University Camilo Castelo Branco, São Paulo, Brazil


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BACKGROUND: This study aimed to investigate the effects of circuit strength training on the muscle strength, functional autonomy and anthropometric indicators of the elderly.
METHODS: Were included 65 women divided in two groups: strength training (TG, N.=34) and control group (CG, N.=31). The strength-training group was subjected to a circuit shaped training program, three days per week, for a period of 12 weeks. In each training session, the circuit was repeated three times. In each circuit, all exercises were performed once, with 8 to 12 repetitions per exercise, with 30-second intervals between each exercise.
RESULTS: TG showed significantly changes in body composition post 12 weeks, as decreases in body weight (Δ-1.5±1.8 kg) and BMI (Δ-0.57±0.74 kg/m²), and decreases in abdominal (Δ-3±1.61 cm), waist (Δ-1 ± 1.61 cm), hip (Δ-2.75±1.44 cm) and waist-hip ratio circumference (Δ-0.02±0.15 cm). For functional autonomy, TG showed increases post 12 weeks by 30-second chair stand (Δ 3.5±0.4 reps), six minute walk (Δ60.95±7.91 m), back scratch (Δ3.2±1.36 cm), and time up and go tests (Δ-1.62±0,15 s). TG also showed increases in muscle strength post 12 weeks in both leg press (Δ11±1.29 kg) and lat pulldown (Δ11±0.75 Kg). For CG, body composition, functional autonomy and muscle strength did not improved in any moment.
CONCLUSIONS: Hence, circuit strength training provides significant improvements in muscle strength, functional performance and anthropometric indicators in sedentary elderly women.


KEY WORDS: Resistance training - Aged - Women

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