Screen-time Weight-loss Intervention Targeting Children at Home (SWITCH): A randomized controlled trial study protocol

BMC Public Health

Study Protocol

Yannan Jiang¹  Louise Foley¹  Midi Tsai¹  Ralph Maddison¹  Cliona Ni Mhurchu¹  Leonard Epstein²  Ofa Dewes³  Ihirangi Heke⁴ 

[1] Clinical Trials Research Unit, University of Auckland, Private Bag 92019, 1142, Auckland, New Zealand;Department of Pediatrics, University at Buffalo, G56 Farber Hall, South Campus, 14260-0001, Buffalo, NY, USA;Pacific Health, University of Auckland, Private Bag 92019, 1142, Auckland, New Zealand;School of Physical Education, University of Otago, PO Box 56, 9054, Dunedin, New Zealand;

关键词: Physical Activity;    Sedentary Behavior;    Primary Caregiver;    Screen Time;    International Physical Activity Questionnaire;   

DOI  :  10.1186/1471-2458-11-524

 received in 2011-06-09, accepted in 2011-06-30,  发布年份 2011

来源: Springer

【 摘 要 】

BackgroundApproximately one third of New Zealand children and young people are overweight or obese. A similar proportion (33%) do not meet recommendations for physical activity, and 70% do not meet recommendations for screen time. Increased time being sedentary is positively associated with being overweight. There are few family-based interventions aimed at reducing sedentary behavior in children. The aim of this trial is to determine the effects of a 24 week home-based, family oriented intervention to reduce sedentary screen time on children's body composition, sedentary behavior, physical activity, and diet.Methods/DesignThe study design is a pragmatic two-arm parallel randomized controlled trial. Two hundred and seventy overweight children aged 9-12 years and primary caregivers are being recruited. Participants are randomized to intervention (family-based screen time intervention) or control (no change). At the end of the study, the control group is offered the intervention content. Data collection is undertaken at baseline and 24 weeks. The primary trial outcome is child body mass index (BMI) and standardized body mass index (zBMI). Secondary outcomes are change from baseline to 24 weeks in child percentage body fat; waist circumference; self-reported average daily time spent in physical and sedentary activities; dietary intake; and enjoyment of physical activity and sedentary behavior. Secondary outcomes for the primary caregiver include change in BMI and self-reported physical activity.DiscussionThis study provides an excellent example of a theory-based, pragmatic, community-based trial targeting sedentary behavior in overweight children. The study has been specifically designed to allow for estimation of the consistency of effects on body composition for Māori (indigenous), Pacific and non-Māori/non-Pacific ethnic groups. If effective, this intervention is imminently scalable and could be integrated within existing weight management programs.Trial RegistrationACTRN12611000164998

【 授权许可】

CC BY   
© Maddison et al; licensee BioMed Central Ltd. 2011