Early Predictors And Body Composition Changes Associated With Adiposity Rebound
Funder
National Health and Medical Research Council
Funding Amount
$201,650.00
Summary
Overweight and obesity rates are increasing in children, and overweight children have higher risk of adult obesity and therefore diseases including heart attack, stroke and diabetes. The preschool years may offer opportunities to divert children from the path to obesity, before poor physical activity and nutritional habits become firmly established. Adiposity rebound is the time in a child's life (usually around 5 to 6 years of age) when body mass index (BMI) begins to increase after a steady de ....Overweight and obesity rates are increasing in children, and overweight children have higher risk of adult obesity and therefore diseases including heart attack, stroke and diabetes. The preschool years may offer opportunities to divert children from the path to obesity, before poor physical activity and nutritional habits become firmly established. Adiposity rebound is the time in a child's life (usually around 5 to 6 years of age) when body mass index (BMI) begins to increase after a steady decline in BMI in the preschool years. Early adiposity rebound is associated with increased BMI in later life. We don't yet know whether the early adiposity rebound causes the higher BMI, or whether it is simply an early sign of an already-established pathway of behavioural and environmental risk. We need a much better understanding of predictors of early adiposity rebound and the changes that occur to determine if age at adiposity rebound is a modifiable risk factor for adult obesity. This study will document the process and timing of adiposity rebound and the changes in percent body fat and lean body mass that occur during that time. We will also determine whether risk and protective factors for early adiposity rebound and overweight at age 6 years are the same or different. We will study over 400 children on whom extensive data have been collected since birth, including period of gestation, birth weight and length. At various stages during their first two years of life, height, weight, feeding patterns and development were recorded. We will measure BMI and perform bioimpedance analysis (BIA) on these children six times between 4 and 6 years of age. BIA provides a measure of body fat and lean mass that is well accepted by children. This will help determine the relationship between changing BMI at different ages and the fat-to-lean mass ratios associated with those changes. This study is the first to consider body composition changes during adiposity rebound.Read moreRead less
Early Intervention To Prevent Childhood Obesity Among A Disadvantaged Population: A Home-based Randomised Controlled Tri
Funder
National Health and Medical Research Council
Funding Amount
$675,082.00
Summary
This intervention research will conduct a randomised controlled trial, of a community-based early childhood home visiting intervention designed to improve family and behavioural risk factors for childhood obesity and overweight. This intervention which will be developed in collaboration with the Health Promotion Unit, Child and Family Health Nurses, university academic experts and mothers in the community promises to deliver significant health and social benefits, in particular, preventing early ....This intervention research will conduct a randomised controlled trial, of a community-based early childhood home visiting intervention designed to improve family and behavioural risk factors for childhood obesity and overweight. This intervention which will be developed in collaboration with the Health Promotion Unit, Child and Family Health Nurses, university academic experts and mothers in the community promises to deliver significant health and social benefits, in particular, preventing early onset of childhood obesity. It will result in a series of recommendations for policies and practical methods for promoting healthy feeding and physical activity of infants under two years of age with particular application to families who are socially and economically disadvantaged. These policies and practical methods for preventing childhood obesity could be used across Australia.Read moreRead less
Does Childhood Physical Activity, Fitness And Fatness Impact On Knee Structural Change 20 Years Later?
Funder
National Health and Medical Research Council
Funding Amount
$301,977.00
Summary
Interventions to increase participation of physical activity (PA) and to reduce obesity in childhood are advocated to reduce the risks of cardiovascular and other diseases in adulthood, but the associations of childhood PA and obesity with knee osteoarthritic changes in adulthood are unknown. This study, with follow-up of a large cohort of Australian children over 20 years, will be the first to determine these associations using the powerful technique of magnetic resonance imaging.
Informing Childhood Obesity Prevention: Describing Dietary Correlates Of Rapid Growth, Overweight And Obesity Across The First Five Years Of Life
Funder
National Health and Medical Research Council
Funding Amount
$318,768.00
Summary
This research aims to explore the dietary correlates of rapid growth and adiposity in the first five years of life. Obesity prevention during infancy has not been widely targeted and limited studies have examined the relationship of early diet, rapid growth and later obesity. By using an epidemiological approach, the findings of this research will inform obesity prevention policy and future revisions of infant and childhood feeding guidelines in Australia.
Randomised Controlled Trial Of A Brief GP Intervention To Reduce Overweight In Victorian Primary School Children
Funder
National Health and Medical Research Council
Funding Amount
$662,600.00
Summary
Childhood overweight and obesity is one of the most pressing public health problems of our time. The aim of this study is to lower the levels of overweight and mild obesity in children aged 5-9 years, through sustainable family and child nutritional and-or physical activity behavioural choices that can be implemented by general practitioners (GPs). This trial addresses the urgent need identified in the 2003 NHMRC Clinical Practice Guidelines for the Management of Overweight and Obesity in Childr ....Childhood overweight and obesity is one of the most pressing public health problems of our time. The aim of this study is to lower the levels of overweight and mild obesity in children aged 5-9 years, through sustainable family and child nutritional and-or physical activity behavioural choices that can be implemented by general practitioners (GPs). This trial addresses the urgent need identified in the 2003 NHMRC Clinical Practice Guidelines for the Management of Overweight and Obesity in Children and Adolescents for simple, well-designed intervention studies which can be translated into usual clinical practice. Effective and coordinated universal prevention, secondary prevention and management services will all be needed to reduce the problem, and a great deal of research is needed in all of these. This proposal addresses the most neglected area of research - secondary prevention in the primary care sector. Through our previous research, we have already showed that this approach is feasible and acceptable to families and GPs. Our multidisciplinary research team is well-established, and we are not aware of any other research team in Australia that has the capacity and expertise to conduct this research at this point in time. In this randomised controlled trial, we expect a halving in the rate of gain in BMI over 6 and 12 months. This would equate to the average participant achieving a BMI of 25 (verging on overweight) rather than 30 (obese) by adulthood. If effective, we expect the following outcomes: 1) The adoption and maintenance of healthy lifestyle behaviours in that segment of the population which has most to gain over a lifetime - overweight and obese children 2) Documentation that general practitioners can make a significant contribution to combating the childhood obesity epidemic 3) A replicable, feasible, cost-effective primary care approach to childhood overweight-obesity tailored to the Australian health care system.Read moreRead less
Generational And Developmental Pathways Of Childhood And Adolescent Obesity: A Three Generation Cohort Study
Funder
National Health and Medical Research Council
Funding Amount
$1,281,100.00
Summary
There are no community-based follow-up (FU) studies of three generations able to examine the impact of earlier generational factors on the developmental pathways of obesity in third generation. The Mater-University of Queensland Study of Pregnancy (MUSP) cohort now has data covering the grandmothers' (GI) reproductive life course and a FU of their children (GII) into adulthood. We now propose a new study of the "children-of-the-children" who are the grandchildren (GIII) of GI and children of GII