Metabolic Response to Playing Video Games
|ClinicalTrials.gov Identifier: NCT01809470|
Recruitment Status : Unknown
Verified January 2013 by University College, London.
Recruitment status was: Recruiting
First Posted : March 12, 2013
Last Update Posted : April 9, 2013
|Condition or disease||Intervention/treatment||Phase|
|Blood Pressure||Behavioral: FIFA2013 Behavioral: Call of Duty Behavioral: Watching TV||Not Applicable|
Our study is investigating the metabolic response to playing competitive non-violent and competitive violent video games. Our primary hypothesis is that the metabolic response in the violent game group will differ from the other two groups, due to activation of the stress response.
We are using an experimental approach, whereby 72 young men are randomised to one of three groups: watching TV, playing the non-violent video game 'FIFA2013', or playing the violent video game 'Call of Duty'. All participants must already have some experience playing the two games, so that whichever group they are assigned to, they can comply with the protocol.
Participants arrive after an overnight fast, and are given a standardised breakfast (a muffin, approx 300 kcal, and a glass of water). After measurements of weight, height and waist girth, they then are assigned to one of the three groups, and allowed to familiarise themselves with the games console or TV. Baseline data on blood pressure (in triplicate, Accutor digital monitor), heart rate (Polar monitor) and appetite/mood (visual analogue scale) are collected, along with a saliva sample for measurement of the 'stress' hormone, cortisol, as well as satiety hormones sich as leptin and ghrelin. We will collect these data again at 4 time-points during the one hour game-playing session, by pausing the game or TV for 4 minutes at 15, 30, 45 and 60 minutes after the session starts.
At the end of the study, we allow the participants half an hour of rest, during which they can choose from a variety of sweet or savoury snacks or fruit, and several drinks.
We will compare the data from the three groups, to test whether changes in blood pressure, heart rate, appetite/mood and salivary hormones, as well as snack consumption, are greater in the group playing the violent game.
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||72 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Single (Outcomes Assessor)|
|Primary Purpose:||Basic Science|
|Official Title:||Metabolic Response to Playing Video Games|
|Study Start Date :||February 2013|
|Estimated Primary Completion Date :||December 2013|
|Estimated Study Completion Date :||December 2013|
Experimental: Watching TV
Watching TV (comedy, 'Friends') for 1 hour
Behavioral: Watching TV
Watching TV for 1 hour
Playing the video game 'FIFA2013' for 1 hour
Playing FIFA2013 for 1 hour
Experimental: Call of Duty
Playing the video game 'Call of duty' for 1 hour
Behavioral: Call of Duty
Playing Call of Duty for 1 hour
- Blood pressure [ Time Frame: Over the 90 minutes of the study ]Systolic and diastolic blood pressure
- Heart rate [ Time Frame: Over the 90 minute duration of the study ]Heart rate by Polar monitor
- Appetite [ Time Frame: Over the 90 minute duration of the study ]Appetite by visual analogue scale, and by a test meal at the end of the study
- Stress [ Time Frame: Over the 90 minute duration of the study ]Salivary cortisol
- Satiety [ Time Frame: Over the 90 minute duration of the study ]Salivary ghrelin and leptin
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01809470
|Contact: Jonathan C Wells, PhD||+442079052389||Jonathan.Wells@ucl.ac.uk|
|UCL Institute of Child Health||Recruiting|
|London, United Kingdom, WC1N 1EH|
|Contact: Jonathan C Wells, PhD +442079052389 Jonathan.Wells@ucl.ac.uk|
|Principal Investigator: Jonathan C Wells, PhD|
|Principal Investigator:||Jonathan C Wells, PhD||UCL Institute of Child Health|