Impact of a Family-Based Obesity Prevention Intervention on Parental Body Composition

dc.contributor.advisorBuchholz, Andrea
dc.contributor.advisorHaines, Jess
dc.contributor.authorAmbrose, Tory
dc.date.accessioned2017-07-12T20:16:55Z
dc.date.available2019-06-01T05:00:20Z
dc.date.copyright2017-06
dc.date.created2017-06-15
dc.date.issued2017-07-12
dc.degree.departmentDepartment of Family Relations and Applied Nutritionen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Scienceen_US
dc.degree.programmeFamily Relations and Applied Nutritionen_US
dc.description.abstractLittle is known about the effect of family-based, obesity prevention interventions on parental body composition, as studies focus on children’s body composition. The Guelph Family Health Study is a randomized controlled trial focused on creating healthy behaviour change in families with preschool-aged children. Families in the Guelph ON area were randomized to control (no home visits), 2 home visits (2HV) or 4 home visits (4HV) with a health educator, and were followed for 6 months. This sub-study examined the effect of the intervention on parental body composition outcomes, including fat mass (%, measured using a BOD POD™), waist circumference (WC, cm), BMI (kg/m2) and body mass (kg), in a sample of 35 families (26 mothers, 32 fathers). An analysis to determine differences in body composition between intervention groups was performed using generalized estimating equations (GEE) to account for familial correlations (adjusted for parental age, sex, household income and baseline measures). At 6-month follow-up (immediately post-intervention), the 2HV group had a lower body mass (p=0.0168), and at 18-month follow up, had significantly lower WC (p=0.0197), when compared to control. In a sub-analysis of parents who were overweight/obese at baseline (BMI ≥25 kg/m2), the 2HV group had lower WC (p=0.0029) and body mass (p=0.0400) at 6-month follow-up when compared to control. At 18-month follow up, the 2HV group had significantly lower WC (p=0.007), BMI (p=0.0139) and body mass (p=0.0068) when compared to control. In parents classified as normal weight at baseline (BMI <25 kg/m2), the 4HV group had lower fat mass (p=0.0371), while the 2HV group had lower BMI (p=0.0159) and body mass (p=0.0064), at 6-month follow-up, both compared to control. There were no significant differences at 18-month follow up. Family-based, obesity prevention interventions have a positive impact on parental body composition, regardless of parents’ baseline weight status. These positive impacts are sustained at 18-month follow up (1-year post-intervention) by those who are overweight/obese at baseline. Our results show that family-based interventions can have positive, unintended results on parental body composition indicating family-based interventions should be explored as a possible intervention approach to improve weight outcomes in parents.en_US
dc.identifier.urihttp://hdl.handle.net/10214/11170
dc.language.isoenen_US
dc.publisherUniversity of Guelphen_US
dc.rights.licenseAll items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectobesityen_US
dc.subjectbody compositionen_US
dc.subjectparentsen_US
dc.titleImpact of a Family-Based Obesity Prevention Intervention on Parental Body Compositionen_US
dc.typeThesisen_US

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