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Impact of social support intensity on walking in the severely obese: a randomized clinical trial.
Karolinska institutet.ORCID iD: 0000-0001-7335-3796​
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2008 (English)In: Obesity, ISSN 1930-7381, E-ISSN 1930-739X, Vol. 16, no 6, 1731-8 p.Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: There are few established methods for promoting physical activity (PA) in the severely obese. Because social support is a potential method for promoting PA, we compared mean steps/day during 18 weeks in severely obese outpatients receiving either standard support (SS) or added support (AS).

METHODS AND PROCEDURES: Eighty severely obese outpatients from an obesity clinic were invited; 66 provided written consent, 55 were randomized, and 42 were included in final analyses (9 men, 33 women; age 44.4 +/- 13.1 years; BMI 41.9 +/- 5.5 kg/m(2)). All participants received a pedometer and a walking promotion booklet. In addition to SS, the AS group received ten 2-h group counseling sessions aimed at increasing weekly accumulated steps, every second week during the study. Each participant was asked to complete a 7-day walking diary every second week (10 observations).

RESULTS: Baseline steps/day was 6,912 for the AS group and 5,311 for the SS group (P = 0.023). Data at 18 weeks showed that the AS group recorded 10,136 steps/day and the SS group 6,118 steps/day (P = 0.024). There was no allocation x time interaction (P = 0.46). During the follow-up period as a whole, the AS group recorded 1,794 more steps/day than the SS group (P = 0.0074).

DISCUSSION: The AS group recorded more steps/day than the SS group, reaching a mean level of approximately 10,000 steps/day. However, the nonsignificant interaction between allocation x time suggests that this difference was present already at baseline and did not increase during follow-up.

Place, publisher, year, edition, pages
2008. Vol. 16, no 6, 1731-8 p.
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Public Health, Global Health, Social Medicine and Epidemiology
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URN: urn:nbn:se:gih:diva-4754DOI: 10.1038/oby.2008.204PubMedID: 18388901OAI: oai:DiVA.org:gih-4754DiVA: diva2:1068855
Available from: 2017-01-26 Created: 2017-01-26 Last updated: 2017-11-29Bibliographically approved

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