title: Effects of circuit-based exercise programs on the body composition of elderly obese women.
abstract: OBJECTIVE
  The 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.
  
  
  METHODS
  Seventy 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/m(2)).
  
  
  RESULTS
  The 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.
  
  
  CONCLUSIONS
  In summary, circuit-based exercise is an effective method for promoting reduction in anthropometrics parameters in obese older women.
authors.affiliation: Departamenteo de Educação Física e, São Paulo, SP, Brazil.
authors.forename: Danilo Sales
authors.initials: DS
authors.lastname: Bocalini
authors.forename: Lucas S
authors.initials: LS
authors.lastname: Lima
authors.forename: Socrates
authors.initials: S
authors.lastname: de Andrade
authors.forename: Angelo
authors.initials: A
authors.lastname: Madureira
authors.forename: Roberta L
authors.initials: RL
authors.lastname: Rica
authors.forename: Rodrigo Nolasco
authors.initials: RN
authors.lastname: Dos Santos
authors.forename: Andrey Jorge
authors.initials: AJ
authors.lastname: Serra
authors.forename: Jose Antonio
authors.initials: JA
authors.lastname: Silva
authors.forename: Daniel
authors.initials: D
authors.lastname: Rodriguez
authors.forename: Aylton
authors.initials: A
authors.lastname: Figueira
authors.forename: Francisco Luciano
authors.initials: FL
authors.lastname: Pontes
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001823:Body Composition; D015992:Body Mass Index; D001835:Body Weight; D015444:Exercise; D005081:Exercise Therapy / Q000379:methods*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009765:Obesity / Q000628:therapy*