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A one-year intervention has modest effects on energy and macronutrient intakes of overweight and obese Swedish children.
Umeå University, Faculty of Social Sciences, Department of Food and Nutrition. (SELFH)
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Paediatrics.
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Paediatrics.
Umeå University, Faculty of Social Sciences, Department of Food and Nutrition. (SELFH)
2010 (English)In: Journal of Nutrition, ISSN 0022-3166, E-ISSN 1541-6100, Vol. 140, no 10, 1793-1798 p.Article in journal (Refereed) Published
Abstract [en]

To decrease BMI in overweight and obese children, improved dietary intake and increased physical activity are key elements. Our objective was to evaluate the impact of a 1-y food and physical activity intervention on energy and macronutrient intake in overweight and obese children. A randomized open trial was conducted with 92 overweight or obese 10.4 ± 1.08-y-old children. The intervention included 14 group sessions with different themes regarding food and physical activity. Dietary intake was assessed with diet history interviews covering 14 d at baseline and 4-d food records after 1 y and was evaluated according to national dietary recommendations. The control group participated in the same measurements as the intervention group but did not take part in group sessions. After 1 y, both groups had decreased their energy intake (EI) relative to total energy expenditure, but the effect was more pronounced for the intervention group than for the control group. At 1 y follow-up, a larger proportion of children in the intervention group compared with the control group met the recommended intake of refined sugar (P = 0.019). However, the groups did not differ in the proportion children who met the recommended intake of dietary fiber. Further, SFA intake relative to total EI did not differ between the groups at 1 y follow-up. In conclusion, despite a rather comprehensive intervention, only modest effects were achieved with respect to reduced EI and improved macronutrient intake.

Place, publisher, year, edition, pages
American Society for Nutrition , 2010. Vol. 140, no 10, 1793-1798 p.
Keyword [en]
food habits, dietary intake, overweight, obesity, intervention
National Category
Nutrition and Dietetics
Research subject
Food and Nutrition
Identifiers
URN: urn:nbn:se:umu:diva-36280DOI: 10.3945/jn.110.125435ISI: 000286086300014PubMedID: 20739446OAI: oai:DiVA.org:umu-36280DiVA: diva2:353202
Projects
SELFH
Available from: 2010-09-24 Created: 2010-09-24 Last updated: 2011-05-09Bibliographically approved
In thesis
1. Dietary and metabolic effects of a 2-year lifestyle intervention in overweight and obese children
Open this publication in new window or tab >>Dietary and metabolic effects of a 2-year lifestyle intervention in overweight and obese children
2011 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Background Childhood overweight and obesity have increased during the past decades and there is a need for effective intervention programs both for treatment and prevention to interrupt the increased trend. Overweight and obesity result from a combination of genetic predisposition and lifestyle where an imbalance in energy intake (EI) and total energy expenditure (TEE) is the key factor. The objective of this thesis is to evaluate the impact of a 2-year lifestyle intervention on food habits, anthropometry and metabolic markers on children with overweight and obesity.

Methods Overweight and obese children 8-12 years old were recruited to participate in a 2-year randomized controlled trial (RCT). One hundred and five children agreed to participate and were randomized into one intervention group and one control group. Both groups participated in the same measurements while the intervention group also participated in a lifestyle program aiming at improving food habits and increasing physical activity. The first year of the program consisted of 14 group sessions and the second year of the intervention was web-based. Food habits were assessed at baseline and at endpoint by a diet history interview (DHI) and by a 4-day food record at 1-year measurement. At baseline 22 randomly chosen children were included in a validation study to validate reported EI against TEE measured by doubly labeled water (DLW) method and SenseWear Armband Pro 2 and 3 (version 5.1) (SWA). Anthropometric and biochemical parameters were measured at baseline, 1-year and endpoint.

Results The DHI underestimated EI by 14% when validated against measured TEE by DLW and SWA. At the 1-year measurement the intervention group had a lower intake of fat (g and E%), monounsaturated fat (MUFA) (g) and polyunsaturated fat (PUFA) (g and E%) compared to the control group. At endpoint the intervention group had a lower intake of fat (g), MUFA (g) and cholesterol compared to the control group. Children in the intervention group consumed less sugar sweetened beverages at endpoint and had increased their intake of keyhole labeled foods compared to the control group. During the first year the growing children in both groups remained stable with respect to BMI and had decreased their BMI zscore.

Conclusion The 2-year lifestyle intervention resulted in some improvements regarding food habits, but overall the effects on anthropometrics and metabolic markers were limited. This strongly supports that efforts should primarily be aimed at primary prevention of childhood overweight and obesity.

Place, publisher, year, edition, pages
Umeå: Umeå universitet, Institutionen för kostvetenskap, 2011. 68 p.
National Category
Food Science
Research subject
Food and Nutrition
Identifiers
urn:nbn:se:umu:diva-43679 (URN)978-91-7459-141-5 (ISBN)
Public defence
2011-06-10, Hörsal C, Samhällsvetarhuset, Umeå universitet, 90187 Umeå, Umeå, 09:00 (Swedish)
Opponent
Supervisors
Available from: 2011-05-09 Created: 2011-05-05 Last updated: 2011-05-09Bibliographically approved

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Waling, MariaLind, TorbjörnHernell, OlleLarsson, Christel

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