Condition category
Circulatory System
Date applied
20/02/2012
Date assigned
21/03/2012
Last edited
08/08/2016
Prospective/Retrospective
Retrospectively registered
Overall trial status
Completed
Recruitment status
No longer recruiting

Plain English Summary

Background and study aims
Videogames are an extremely popular pastime, in particular amongst young people. Research has suggested that “passive” activities such as watching television and computer gaming increase the risk of excess weight gain and obesity. However, computer games are very variable, and not all involve passive participation. For example, many computer games involve exposure to violent images during simulated violent encounters. Such games involve the participant responding at high speed to simulated experiences which, in real life, would be highly stressful. In real life, stress generates many metabolic effects, including those associated with cardiovascular risk. Chronic exposure to stress, for example in the work place, has been associated with central obesity (excessive fat around the stomach). It is unknown whether simulations of violence in computer games generate the same kinds of stress response. The aim of the study is to understand if playing computer games has different effects from watching television, and if playing violent computer games generates different effects to playing non-violent games.

Who can participate?
Our study is open to healthy young men aged between 18 and 30 years.

What does the study involve?
The study involves a single visit to UCL Institute of Child Health, London. Participants will be randomly allocated to one of three activities: (a) watching television, (b) playing a non-violent computer game, or (c) playing a computer game involving high levels of simulated violence. Measurements of weight, height, heart rate, blood pressure and a saliva sample will be taken.

What are the possible benefits and risks of participating?
All participants will learn their current weight, height and BMI, and they will also be given their blood pressure results. There are no known risks to participants.

Where is the study run from?
UCL Institute of Child Health in the Childhood Nutrition Research Centre (UK)

When is the study starting and how long is expected to be run for?
January 2010 to April 2011

Who is funding the study?
The Childhood Nutrition Research Centre at UCL Institute of Child Health

Who is the main contact?
Prof. Jonathan Wells
Jonathan.Wells@ucl.ac.uk

Trial website

Contact information

Type

Scientific

Primary contact

Prof Jonathan Wells

ORCID ID

Contact details

University College London
Institute of Child Health
Childhood Nutrition Research Centre
30 Guilford Street
London
WC1N 1EH
United Kingdom

Additional identifiers

EudraCT number

ClinicalTrials.gov number

Protocol/serial number

N/A

Study information

Scientific title

Metabolic response to playing video games: a randomised trial

Acronym

Study hypothesis

Indices of metabolism and cardiovascular risk differ between those watching television, those playing a sport computer game, and those playing a violent video game.

Ethics approval

University College London (UCL) Graduate School Ethics Committee, 19/05/2009, ref: 0326/004

Study design

Randomised trial

Primary study design

Interventional

Secondary study design

Randomised controlled trial

Trial setting

Other

Trial type

Other

Patient information sheet

Not available in web format, please use the contact details below to request a patient information sheet

Condition

Cardiovascular disease and obesity

Intervention

Randomisation to one of three groups:
1. Watching television
2. Playing sports video games
3. Violent video games

The study involved a single 1-hour measurement session for each participant, when they were requested to participate in their randomly-specified activity (watching television, playing a sports computer game, or playing a violent video game). The study was completed at the end of this session and no further follow up was conducted.

Intervention type

Other

Phase

Not Applicable

Drug names

Primary outcome measures

Blood pressure

Secondary outcome measures

1. Anthropometry (weight, height)
2. Saliva samples for assessment of salivary cortisol
3. Visual-scale ratings of appetite
4. Heart rate

Overall trial start date

01/06/2009

Overall trial end date

01/04/2011

Reason abandoned

Eligibility

Participant inclusion criteria

1. Healthy young men
2. Aged 18-30 years

Participant type

Healthy volunteer

Age group

Adult

Gender

Male

Target number of participants

Three groups of young men (16 per group) - 48

Participant exclusion criteria

1. Smokers
2. Body mass index (BMI) <18 or >25 kg/m2
3. Weight-unstable (i.e. a change of more than 3kg in the previous 3 months)
4. Diabetic or hypertensive individuals
5. Those with chronic or acute medical conditions or medications that might affect the primary outcomes of the study
6. Those with psychiatric disorders
7. Consuming less than 21 units of alcohol per week

Recruitment start date

01/06/2009

Recruitment end date

01/04/2011

Locations

Countries of recruitment

United Kingdom

Trial participating centre

University College London
London
WC1N 1EH
United Kingdom

Sponsor information

Organisation

University College London (UK)

Sponsor details

Institute of Child Health
30 Guilford Street
London
WC1N 1EH
United Kingdom
-
Susan.Harrison@gosh.nhs.uk

Sponsor type

University/education

Website

http://www.ucl.ac.uk/

Funders

Funder type

University/education

Funder name

University College London Institute of Child Health - Childhood Nutrition Research Centre (UK)

Alternative name(s)

Funding Body Type

Funding Body Subtype

Location

Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date

Participant level data

Not provided at time of registration

Results - basic reporting

Publication summary

Publication citations

Additional files

Editorial Notes

09/08/2016: No publications found, verifying study status with principal investigator.