Effects of circuit-based exercise programs on the body composition of elderly obese women

Abstract

AimThe aim of this study was to investigate the impact of circuit-based exercise on the body composition in obese older women by focusing on physical exercise and body weight (BW) gain control in older people.MethodsSeventy older women (>60 years old) voluntarily took part in the study. Participants were randomized into six different groups according to body mass index (BMI): appropriate weight (AW) control (AWC) and trained (AWT) groups, overweight (OW) control (OWC) and trained (OWT) groups, and obesity (O) control (OC) and trained (OT) groups. The exercise program consisted of 50 minutes of exercise three times per week for 12 weeks. The exercises were alternated between upper and lower body using rest between sets for 40 seconds with intensity controlled by heart rate (70% of work). The contraction time established was 5 seconds to eccentric and concentric muscular action phase. The following anthropometric parameters were evaluated: height (m), body weight (BW, kg), body fat (BF, %), fat mass (FM, kg), lean mass (LM, kg), and BMI (kg/m2).ResultsThe values (mean ± standard deviation [SD]) of relative changes to BW (−8.0% ± 0.8%), BF (−21.4% ± 2.1%), LM (3.0% ± 0.3%), and FM (−31.2% ± 3.0%) to the OT group were higher (P < 0.05) than in the AWT (BW: −2.0% ± 1.1%; BF: −4.6% ± 1.8%; FM: −7.0% ± 2.8%; LM: 0.2% ± 1.1%) and OWT (BW: −4.5% ± 1.0%; BF: −11.0% ± 2.2%; FM: −16.1% ± 3.2%; LM: −0.2% ± 1.0%) groups; additionally, no differences were found for C groups. While reduction (P < 0.03) in BMI according to absolute values was observed for all trained groups (AWT: 22 ± 1 versus 21 ± 1; OWT: 27 ± 1 versus 25 ± 1, OT: 34 ± 1 versus 30 ± 1) after training, no differences were found for C groups.ConclusionIn summary, circuit-based exercise is an effective method for promoting reduction in anthropometrics parameters in obese older women.

Efeitos de longo prazo do treinamento resistido nos indicadores de obesidade: uma revisão sistemática

“…The number of repetitions ranged from 8 to 20, with a predominance of 8 to 12 repetitions (7 studies). In three studies 13,30,31 a time of 30 seconds to 1 minute was used to perform the repetitions. The percent load used, cited by 10 studies 12,15,20,22,23,25,[32][33][34]36 ranged from 40 to 75% 1 RM, and the load interval most frequently employed was 40 to 60% (6 studies).…”

“…The percent load used, cited by 10 studies 12,15,20,22,23,25,[32][33][34]36 ranged from 40 to 75% 1 RM, and the load interval most frequently employed was 40 to 60% (6 studies). The interval between exercise series, cited by 6 studies 13,19,20,31,34,36 , ranged from 0 to 2 minutes, with no predominance of a specific interval (Table 2). Only one article 30 mentioned the speed of execution (5" to perform the movement) (result not shown in the table).…”

Cardiovascular program to improve physical fitness in those over 60&nbsp;years old &ndash; pilot study

“…Participants were motivated in this longitudinal study, so the practice of PA was done on a daily basis 25. It has been found that persons with higher body weight have a lower motivation toward PA 26.…”

Influence of menopause on body fat induced by aerobic training

“…However, in previous studies, greater weight loss may occur in people with higher initial body mass 13,14 , which may be the case for MN women in relation to OS.…”