title: Improved psychological well-being, quality of life, and health practices in moderately overweight women participating in a 12-week structured weight loss program.
abstract: OBJECTIVE
  To study the effects of a 12-week weight loss strategy involving increased physical activity, self-selected hypocaloric diet, and group support on psychological well-being, quality of life, and health practices in moderately obese women.
  
  
  METHODS
  Eighty women aged 20-49 years weighing between 20-50% above 1983 Metropolitan Life Insurance Tables were randomly assigned to a weight loss intervention (6279 kJ/week of physical activity, 33,258-41,462 kJ/week diet and weekly meetings) or served as controls. Subjects were tested pre and post 12-weeks.
  
  
  RESULTS
  The intervention group lost significant (p<0.001) body weight (kg) and body fat (%) compared to controls (-6.07+/-4.01 kg vs. 1.31+/-1.28 kg; 36.8%-32.5% vs. 36.2%-36.0%). Intervention subjects vs. controls achieved significant improvements (p<0.001) in body cathexis (X Change 18.6+/-16.7 vs. 0.7+/-8.6) and estimation of ability to achieve physical fitness (X Change 8.1+/-7.1 vs. 0.9+/-5.9). Various quality of life indices also improved (p<0.01) in the intervention group compared to controls (physical function: X Change 13.5.2+/-16.7 vs. 1.4+/-9.5; vitality: X change 21.7+/-17.9 vs. 2.9+/-20.8; mental health: X change 10.4+/-16.0 vs. 2.3+/-10.1). Similarly, physical activity levels also improved significantly (p<0.0001) in the intervention group (4.4+/-2.3 vs. 0.6+/-1.3; on NASA 0-7 scale).
  
  
  CONCLUSIONS
  Practical weight loss practices such as increased activity, self-selected hypocaloric diet, and group support are effective for weight loss and yield significant health and psychological benefits in moderately obese females.
authors.affiliation: Tufts University School of Medicine and The Center for Clinical and Lifestyle Research, Shrewsbury, MA 01545, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Rippe
authors.forename: J M
authors.initials: JM
authors.lastname: Price
authors.forename: S A
authors.initials: SA
authors.lastname: Hess
authors.forename: G
authors.initials: G
authors.lastname: Kline
authors.forename: K A
authors.initials: KA
authors.lastname: DeMers
authors.forename: S
authors.initials: S
authors.lastname: Damitz
authors.forename: I
authors.initials: I
authors.lastname: Kreidieh
authors.forename: P
authors.initials: P
authors.lastname: Freedson
mesh_terms: D000328:Adult; D001823:Body Composition; D002319:Cardiovascular System / Q000503:physiopathology; D004038:Diet, Reducing; D002149:Energy Intake; D015444:Exercise; D005260:Female; D006293:Health Promotion; D006801:Humans; D008875:Middle Aged; D009747:Nutritional Physiological Phenomena; D009765:Obesity / Q000503:physiopathology / Q000523:psychology / Q000628:therapy*; D010809:Physical Fitness; D011446:Prospective Studies; D011788:Quality of Life; D012649:Self Concept; D012657:Self-Help Groups; D015431:Weight Loss