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

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


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.


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


Cardiovascular Risk Factors


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


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


Active, not recruiting


Karolinska Institutet

Results (where available)

View Results


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

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Medical and Biotech [MESH] Definitions

It is a client-centered, directive method for eliciting intrinsic motivation to change using open-ended questions, reflective listening, and decisional balancing. This nonjudgmental, nonconfrontational interviewing style is designed to minimize a patient's resistance to change by creating an interaction that supports open discussion of risky or problem behavior.

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.

Fish of the genera ONCORHYNCHUS and Salmo in the family SALMONIDAE. They are anadromous game fish, frequenting the coastal waters of both the North Atlantic and Pacific. They are known for their gameness as a sport fish and for the quality of their flesh as a table fish. (Webster, 3d ed).

Physical activity which is usually regular and done with the intention of improving or maintaining PHYSICAL FITNESS or HEALTH. Contrast with PHYSICAL EXERTION which is concerned largely with the physiologic and metabolic response to energy expenditure.

Food products manufactured from fish (e.g., FISH FLOUR, fish meal).

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