None listed
Conditions
Brief summary
This prospective, randomised, 2-arm, parallel design study will investigate the effects of single-screen (SS) and multiple-screen (MS) exposures on energy intake in adolescent males. Participants will participate in one of two conditions: (1) SS exposure, which will involve watching TV for 1 hour, and (2) MS exposure, which will involve watching TV for 1 hour while having access to a smartphone and an iPad computer. During each exposure, a variety of food and drink will be available for the participant to consume, with the amount and type of food and drink consumed calculated at the end of the session. Study participants will be asked to complete a questionnaire to assess the home screen environment and attitudes towards screen-based activities. Prior to the condition and immediately after the condition the participant will rate subjective measures of appetite, hunger, satiety, and desire to eat something sweet, salty and fatty, using visual analogue scales. Energy intake for the remainder of the study day will be assessed.
Interventions
Participants will undergo a 1-hour multi-screen exposure, during which they will watch TV while having access to a smartphone and an iPad computer. During the 1-hour exposure, participants will also have access to a variety of food (e.g. chocolate, yoghurt, and fruit) and drink (water and soda). The study will take place in a laboratory room situated at the University of Auckland, Tamaki campus. The participant will be alone in the laboratory room (i.e. there will not be any other participants i
Participants will undergo a 1-hour multi-screen exposure, during which they will watch TV while having access to a smartphone and an iPad computer. During the 1-hour exposure, participants will also have access to a variety of food (e.g. chocolate, yoghurt, and fruit) and drink (water and soda). The study will take place in a laboratory room situated at the University of Auckland, Tamaki campus. The participant will be alone in the laboratory room (i.e. there will not be any other participants in the room with them).
Sponsors
Samantha Marsh
Study design
Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Educational / counselling / training
Masking
Open (masking not used)
Eligibility
Sex/Gender
Male
Age
14 Years to 18 Years
Healthy volunteers
Yes
Inclusion criteria
1. Males aged 14-18 years 2. Normal-weight (5th percentile to less than 85th percentile) 3. Able to provide informed consent 4. Able to read and understand English 5. Owner and user of a Smartphone 6. Familiar with using an iPad Primary caregiver inclusion criteria (for participants aged <16 years): 1. Primary caregiver over the age of 18 years 2. Able to provide written consent to participate in study 3. Speaks and understands English
Exclusion criteria
1. Unstable body weight during the previous 6 months (defined as a change in bodyweight of at least 4kg) 2. Inability to understand and/or comply with study protocol 3. Known food allergies 4. Significant health conditions Primary caregiver inclusion criteria: None
Outcome results
None listed