Effects of Physical Activity on Weight Loss and Weight Maintenance in Obese Adults - Three Year Follow-up Study

Healthy Obesity, Metabolically, Obesity, Physical Activity, Weight Loss

Obesity, Weight loss, Weight maintenance, Physical activity, Fitness

Objective To study if exercise added to weight loss treatment at the beginning of the weight loss intervention or at 6 months could sustain the weight loss achieved or give extra boost for weight reduction. Design 36-month, 4-group parallel, randomized trial. Setting Oulu, Finland. Participants 120 obese adults (body mass index ≥ 30). Intervention Participants were randomly assigned to behavioural modification (iBM) (n = 30), behavioural modification + exercise from 0 to 3 months (CWT1) (n = 30), behavioural modification + exercise from 6 to 9 months (CWT2) (n = 30), and a control group (CON) (n = 30). Questionnaires and measurements were performed at baseline, 3,9,4 and 36 months. The intervention consisted of an intensified weight loss period (1-12 months) followed by a weight maintenance period (13-36 months). Intensified behavioural modification included 14 individual face to face meetings, eleven times with a personal therapist (qualified nurse) and three times with a nutritionist. Weight maintenance period included six individual meetings with personal therapist. Twelve weeks supervised exercise was offered three times a week, 40 minutes at a time. In the CWT1 group supervised exercise was offered at months 1-3 and in the CWT2 group at months 4-6. Measurements Body weight (primary outcome) and waist circumference (secondary outcome)

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