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- Hemmingsson, Erik, et al.
(författare)
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Increased physical activity in abdominally obese women through support for changed commuting habits : a randomized clinical trial
- 2009
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Ingår i: International Journal of Obesity. - : Springer Science and Business Media LLC. - 0307-0565 .- 1476-5497. ; 33:6, s. 645-652
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Tidskriftsartikel (refereegranskat)abstract
- Background: Abdominally obese women can reduce their health risk through regular physical activity. There is, however, little evidence on the effectiveness of interventions that promote physical activity long-term, such as cycling and walking to and from work. Methods: This intervention focused on physically active commuting (cycling and walking) in middle-aged (30-60 years), abdominally obese (waist circumference >= 88 cm) women (n = 120), recruited by newspaper advertisement. The intervention group was a moderate-intensity programme with physician meetings, physical activity prescriptions, group counselling and bicycles. The control group was a low-intensity group support programme with pedometers. We used a randomized, controlled, 2-armed design with 18 months duration and intention-to-treat analysis (data collection 2005-2006). Treatment success was defined as bicycling >= 2 km/d (primary) or walking 10 000 steps per day (secondary). Results: At baseline, mean (s. d.) age was 48.2 years (7.4), waist circumference 103.8cm (7.8), walking 8471 steps per day (2646), bicycling 0 km per day. Attrition at 18 months was 10% for the intervention group and 25% in the control group (P = 0.03). The intervention group was more likely to achieve treatment success for cycling than controls: 38.7 vs 8.9% (odds ratio (OR) 7.8 (95% confidence interval = 4.0 to 15.0, P < 0.001)), but with no difference for compliance with the walking recommendation: 45.7 vs 39.3% (OR 1.2 (95% CI 0.7 to 2.0, P = 0.50)). Commuting by car and public transport were reduced by 34% (P < 0.01) and 37% (P < 0.001), respectively, with no differences between groups. Both groups attained similar waist reductions (-2.1 and -2.6 cm, P = 0.72). Conclusions: Abdominally obese women can increase PA long-term through moderate-intensity behavioural support aimed at changing commuting habits. International Journal of Obesity (2009) 33, 645-652; doi: 10.1038/ijo.2009.77; published online 5 May 2009
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