title: Impact of resistance training with or without caloric restriction on physical capacity in obese older women.
abstract: OBJECTIVE
  To investigate the specific impact of resistance training (RT) with or without caloric restriction (CR) on physical capacity in obese older women.
  
  
  METHODS
  Forty-eight postmenopausal obese women, physically independent and between the ages of 55 and 75 years were recruited. The women were randomly assigned to one of four groups (1: RT [n = 12], 2: CR [n = 12], 3: CR + RT [n = 12], or 4: control group [C; n = 12]) for 3 months. CR and CR + RT groups participated in a weekly group session on nutrition, and RT and CR + RT groups took part in a resistance training program. Physical capacity was measured with 11 different performance tests. A global physical capacity score (range, 0-44) was then computed using quartiles of each test. Body composition was measured by dual-energy x-ray absorptiometry.
  
  
  RESULTS
  Body weight, total fat mass, percentage of fat mass, and body mass index (kg/m) significantly decreased in the CR and CR + RT groups (P < 0.01), whereas only the CR group showed a significant decrease in lean body mass (P < 0.05) after the 3-month program. The global physical capacity score significantly improved in the RT group (10.0 +/- 8.8%; P < 0.01), compared with the C group after 3 months.
  
  
  CONCLUSIONS
  Overall, the 3-month RT program alone had a greater effect on physical capacity than CR or CR + RT. Thus, a 3-month RT could help prevent long-term decreases in physical capacity in obese older women.
authors.affiliation: Health and Social Services Centre, Sherbrooke University Institute of Geriatrics, Faculty of Physical Education and Sports, University of Sherbrooke, Québec, Canada.
authors.forename: Danielle R
authors.initials: DR
authors.lastname: Bouchard
authors.forename: Lisa
authors.initials: L
authors.lastname: Soucy
authors.forename: Martin
authors.initials: M
authors.lastname: Sénéchal
authors.forename: Isabelle J
authors.initials: IJ
authors.lastname: Dionne
authors.forename: Martin
authors.initials: M
authors.lastname: Brochu
mesh_terms: D000368:Aged; D001823:Body Composition; D015992:Body Mass Index; D031204:Caloric Restriction; D004040:Dietary Carbohydrates / Q000008:administration & dosage; D004041:Dietary Fats / Q000008:administration & dosage; D004044:Dietary Proteins / Q000008:administration & dosage; D005260:Female; D006801:Humans; D007537:Isometric Contraction; D008875:Middle Aged; D053580:Muscle Strength; D009765:Obesity / Q000503:physiopathology* / Q000628:therapy*; D010809:Physical Fitness; D017698:Postmenopause; D055070:Resistance Training; D015431:Weight Loss
chemical_list: D004040:Dietary Carbohydrates; D004041:Dietary Fats; D004044:Dietary Proteins