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Sedentary Screen Time Activities on Food Intake

This study has been completed.
Mount Saint Vincent University
Information provided by (Responsible Party):
Nick Bellissimo, Ryerson University Identifier:
First received: December 12, 2012
Last updated: December 13, 2012
Last verified: December 2012

The purpose is to investigate the effect of sedentary screen time activities on food intake and subjective appetite in 9- to 14-year old normal weight and overweight/obese girls. The investigators hypothesize that pre-meal exposure to screen time activities for 45 minutes increases subjective appetite and food intake at the next meal. Food intake will be measured immediately following screen-time exposure, and subjective appetite measured throughout the study period at 0, 15, 30, 45 and 75 minutes.

Condition Intervention
Exogenous Obesity
Behavioral: Television Viewing before mealtime
Behavioral: Video Game Playing
Behavioral: Computer Use
Behavioral: Sitting quietly

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Single Blind (Subject)
Primary Purpose: Prevention
Official Title: Effect of Sedentary Screen Time Activities Before a Meal on Food Intake in Girls

Further study details as provided by Ryerson University:

Primary Outcome Measures:
  • Food Intake (kcal) [ Time Frame: measured at 45 minutes after the treatment ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Subjective appetite [ Time Frame: 0-75 minutes ] [ Designated as safety issue: No ]
    Subjective appetite (in mm) determined by visual analogue scale

Enrollment: 31
Study Start Date: June 2011
Study Completion Date: August 2012
Primary Completion Date: August 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Television Viewing
Television viewing before mealtime
Behavioral: Television Viewing before mealtime
Experimental: Video Game Playing
Video Game Playing before mealtime
Behavioral: Video Game Playing
Experimental: Computer Use
Computer Use before mealtime
Behavioral: Computer Use
Experimental: Sitting Quietly
Sitting Quietly before mealtime
Behavioral: Sitting quietly


Ages Eligible for Study:   9 Years to 14 Years
Genders Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • healthy girls with no emotional, behavioral or learning problems

Exclusion Criteria:

  • boys
  Contacts and Locations
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Please refer to this study by its identifier: NCT01750177

Canada, Nova Scotia
Department of Applied Human Nutrition
Halifax, Nova Scotia, Canada
Canada, Ontario
School of Nutrition, Ryerson University
Toronto, Ontario, Canada
Sponsors and Collaborators
Ryerson University
Mount Saint Vincent University
  More Information

No publications provided

Responsible Party: Nick Bellissimo, Assistant Professor, Ryerson University Identifier: NCT01750177     History of Changes
Other Study ID Numbers: REB 2012-120-002
Study First Received: December 12, 2012
Last Updated: December 13, 2012
Health Authority: Canada: Ethics Review Committee processed this record on November 25, 2014