title: Physical activity and quality of life in severely obese adults during a two-year lifestyle intervention programme.
abstract: It is unknown how changes in physical activity may affect changes in quality of life (QoL) outcomes during lifestyle interventions for severely obese adults. The purpose of this study was to examine associations in the patterns of change between objectively assessed physical activity as the independent variable and physical, mental, and obesity-specific QoL and life satisfaction as the dependent variables during a two-year lifestyle intervention. Forty-nine severely obese adults (37 women; 43.6 ± 9.4 years; body mass index 42.1 ± 6.0 kg/m(2)) participated in the study. Assessments were conducted four times using Medical Outcomes Study Short-Form 36 Health Survey (SF-36), Obesity-Related Problems (OP) scale, a single item on life satisfaction, and accelerometers. The physical component summary (PCS) score and the mental component summary (MCS) score were used as SF-36 outcomes. Associations were determined using linear regression analyses and reported as standardized coefficients (stand. coeff.). Change in physical activity was independently associated with change in PCS (stand. coeff. = 0.35, P = .033), MCS (stand. coeff. = 0.51, P = .001), OP (stand. coeff. = -0.31,  P = .018), and life satisfaction (stand. coeff. = 0.39, P = .004) after adjustment for gender, age, and change in body mass index.
authors: Faculty of Health Studies, Sogn og Fjordane University College, P.O. Box 523, 6803 Førde, Norway ; Department of Global Public Health and Primary Care, University of Bergen, 5020 Bergen, Norway.
authors: Randi
authors: 0000-0003-0934-9850
authors: R
authors: Jepsen
authors: Faculty of Health Studies, Sogn og Fjordane University College, P.O. Box 523, 6803 Førde, Norway.
authors: Eivind
authors: 0000-0001-9654-2653
authors: E
authors: Aadland
authors: Red Cross Haugland Rehabilitation Centre, 6968 Flekke, Norway.
authors: Lesley
authors: 0000-0002-6664-7523
authors: L
authors: Robertson
authors: Faculty of Health Studies, Sogn og Fjordane University College, P.O. Box 523, 6803 Førde, Norway ; Quality of Life Consulting, Durham, NC 27705, USA ; Department of Community and Family Medicine, Duke University School of Medicine, Durham, NC 27708, USA ; Department of Surgery, Førde Central Hospital, 6807 Førde, Norway ; Morbid Obesity Centre, Vestfold Hospital Trust, 3103 Tønsberg, Norway.
authors: Ronette L
authors: RL
authors: Kolotkin
authors: Faculty of Health Studies, Sogn og Fjordane University College, P.O. Box 523, 6803 Førde, Norway ; Department of Surgery, Førde Central Hospital, 6807 Førde, Norway.
authors: John Roger
authors: 0000-0001-6300-9086
authors: JR
authors: Andersen
authors: Department of Global Public Health and Primary Care, University of Bergen, 5020 Bergen, Norway.
authors: Gerd Karin
authors: GK
authors: Natvig
mesh_terms: D000328:Adult; D001521:Behavior Therapy; D015992:Body Mass Index; D004032:Diet; D015444:Exercise; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity; D009664:Norway / Q000453:epidemiology; D009767:Obesity, Morbid / Q000517:prevention & control / Q000523:psychology / Q000628:therapy*; D011446:Prospective Studies; D011788:Quality of Life / Q000523:psychology; D040242:Risk Reduction Behavior; D013997:Time Factors; D016896:Treatment Outcome; D015430:Weight Gain; D015431:Weight Loss
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