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Screen-time weight-loss intervention targeting children at home (SWITCH): a randomized controlled trial

Maddison, Ralph, Marsh, Samantha, Foley, Lousie, Epstein, Leonard H., Olds, Timothy, Dewes, Ofa, Heke, Ihirangi, Carter, Karen, Jiang, Yannan and Ni Mhurchu, Cliona 2014, Screen-time weight-loss intervention targeting children at home (SWITCH): a randomized controlled trial, International journal of behavioral nutrition and physical activity, vol. 11, Article number: 111, pp. 1-11, doi: 10.1186/s12966-014-0111-2.

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Title Screen-time weight-loss intervention targeting children at home (SWITCH): a randomized controlled trial
Author(s) Maddison, RalphORCID iD for Maddison, Ralph orcid.org/0000-0001-8564-5518
Marsh, Samantha
Foley, Lousie
Epstein, Leonard H.
Olds, Timothy
Dewes, Ofa
Heke, Ihirangi
Carter, Karen
Jiang, Yannan
Ni Mhurchu, Cliona
Journal name International journal of behavioral nutrition and physical activity
Volume number 11
Season Article number: 111
Start page 1
End page 11
Total pages 11
Publisher BioMed Central
Place of publication London, Eng.
Publication date 2014-09
ISSN 1479-5868
Keyword(s) Body Composition
Body Mass Index
Child
Computers
Energy Intake
Female
Follow-Up Studies
Food Habits
Health Behavior
Health Promotion
Humans
Male
Motor Activity
New Zealand
Obesity
Overweight
Sedentary Lifestyle
Television
Treatment Outcome
Video Games
Waist Circumference
Weight Loss
Summary BACKGROUND: Screen-based activities, such as watching television (TV), playing video games, and using computers, are common sedentary behaviors among young people and have been linked with increased energy intake and overweight. Previous home-based sedentary behaviour interventions have been limited by focusing primarily on the child, small sample sizes, and short follow-up periods. The SWITCH (Screen-Time Weight-loss Intervention Targeting Children at Home) study aimed to determine the effect of a home-based, family-delivered intervention to reduce screen-based sedentary behaviour on body composition, sedentary behaviour, physical activity, and diet over 24 weeks in overweight and obese children.

METHODS: A two-arm, parallel, randomized controlled trial was conducted. Children and their primary caregiver living in Auckland, New Zealand were recruited via schools, community centres, and word of mouth. The intervention, delivered over 20 weeks, consisted of a face-to-face meeting with the parent/caregiver and the child to deliver intervention content, which focused on training and educating them to use a wide range of strategies designed to reduce their child's screen time. Families were given Time Machine TV monitoring devices to assist with allocating screen time, activity packages to promote alternative activities, online support via a website, and monthly newsletters. Control participants were given the intervention material on completion of follow-up. The primary outcome was change in children's BMI z-score from baseline to 24 weeks.

RESULTS: Children (n = 251) aged 9-12 years and their primary caregiver were randomized to receive the SWITCH intervention (n = 127) or no intervention (controls; n = 124). There was no significant difference in change of zBMI between the intervention and control groups, although a favorable trend was observed (-0.016; 95% CI: -0.084, 0.051; p = 0.64). There were also no significant differences on secondary outcomes, except for a trend towards increased children's moderate intensity physical activity in the intervention group (24.3 min/d; 95% CI: -0.94, 49.51; p = 0.06).

CONCLUSIONS: A home-based, family-delivered intervention to reduce all leisure-time screen use had no significant effect on screen-time or on BMI at 24 weeks in overweight and obese children aged 9-12 years.
Language eng
DOI 10.1186/s12966-014-0111-2
Field of Research 111799 Public Health and Health Services not elsewhere classified
Socio Economic Objective 920499 Public Health (excl. Specific Population Health) not elsewhere classified
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30081543

Document type: Journal Article
Collections: School of Exercise and Nutrition Sciences
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.