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Intervention Study to Prevent Obesity in Sedentary 8 Year Old Swedish Children

2014-08-27 03:15:11 | BioPortfolio

Summary

The purpose of this study is to study whether a targeted intervention can increase physical activity in inactive 8-yr old children and how it affects secondary measures such as metabolic- and cardiovascular risk factors and markers, self-reported quality of life, BMI, body composition and aerobic work-capacity.

Description

Background Between 3 to 5 % of Swedish 10 yr olds are obese and an additional 20 % are over-weight. Being physically inactive in childhood increases the risk for becoming obese both in child- and adulthood and a correlation between BMI and arterial-sclerotic markers can be seen already in childhood. Physical activity (PA) in children improve their insulin sensitivity and reduce metabolic risk regardless of the proportion of fat mass. Published questionnaire data suggests that the level of PA has decreased in children between the years 1968 to 2001.

Study aims To study whether a targeted intervention can increase PA in sedentary 8-yr old children (2nd grade Swedish elementary school) and how it affects secondary measures such as; metabolic- and cardiovascular risk markers; self-reported quality of life, PA and motor skills; BMI; body composition; bone mineral density (BMD); PF. To identify factors of success that could be implemented in schools and pre-schools and in the commune and health-care parent support.

Subjects and methods With informed written consent of parents/caretakers we will screen at selected schools with questionnaires and accelerometers to identify sedentary children. The 30% most inactive children will be offered participation in the study. Cut off values for inactivity is obtained from a large reference-material based on 1800 measurements on 6 - 10 yr old children from the STOPP study. The intervention will be delivered through sessions aiming at developing healthy habits regarding PA and via supplementation with fish liver oil. The sessions will be performed by trained health workers (coaches) and carried out in the families' homes and later on via telephone. All families will meet with their coach during at least 6 times. The coaches will use the technique of Motivational Interviewing (MI). However, extra efforts, such as group work-out sessions and out-door activities, will be made. The individual work with these families is delicate and the intervention staff group will therefore have continuous education and guidance from a qualified MI tutor. All included children will be randomized to equally sized intervention or control group. All outcome measures will be assessed at 0 and 15 weeks (completion) of the intervention. The study is limited by the school semesters. Screening is therefore scheduled to the fall- and intervention program to spring semester.

Study Design

Allocation: Randomized, Control: Placebo Control, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention

Conditions

Cardiovascular Risk Factors

Intervention

Motivational Interviewing, Physical activity, Supplementation with fish liver oli capsules, Placebo oil capsules

Location

Karolinska Institutet, Dept. of Clinical Science, Intervention and Technology (CLINTEC), Division of Pediatrics.
Huddinge
Södermanland
Sweden
14186

Status

Active, not recruiting

Source

Karolinska Institutet

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:15:11-0400

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Oils high in unsaturated fats extracted from the bodies of fish or fish parts, especially the livers. Those from the liver are usually high in vitamin A. The oils are used as dietary supplements, in soaps and detergents, as protective coatings, and as a base for other food products such as vegetable shortenings.

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