Study Stopped
Lack of funding.
The Effects of Smartphone Use on Physical Activity, Sedentary Behaviour, Sleep, and Well-being
1 other identifier
interventional
7
1 country
1
Brief Summary
Previous studies suggest that screen use (phones, TV, computers, etc) may negatively impact both sleep and mental health (1-3). The purpose of this study is to determine the impact of reducing smartphone use on sleep, physical activity, sedentary behaviour, and mental health in adolescents and young adults aged 13-25.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Dec 2018
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 12, 2018
CompletedFirst Posted
Study publicly available on registry
November 26, 2018
CompletedStudy Start
First participant enrolled
December 1, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 30, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
June 30, 2019
CompletedJanuary 29, 2021
November 1, 2018
7 months
October 12, 2018
January 26, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Changes in Positive and Negative Affect
Data will be collected using the PANAS scale. Scores for both Positive and Negative Affect range from 10-50, with higher scores representing higher levels of each.
Measured after the first and second week of study.
Changes in Depression Symptoms
Data will be collected using the CES-D scale. Scores range from 0-60, with higher scores indicating the presence of more symptomatology
Measured after the first and second week of study.
Secondary Outcomes (5)
Changes in Self-Reported Food Intake
Measured after the first and second week of study.
Changes in body mass index
Measured after the first and second week of study.
Changes in sleep quality and quantity
Measured after the first and second week of study.
Changes in Physical Activity
Measured after the first and second week of study.
Changes in Sedentary Behaviour
Measured after the first and second week of study.
Study Arms (2)
Control Group
NO INTERVENTIONNo intervention
Intervention Group
EXPERIMENTALWill cut their smartphone screen time in half, sleep without phone in bedroom, and have a "bedtime" for their phone use.
Interventions
Cutting average smartphone screen time in half. Sleeping without smartphone in bedroom. Establishing a "bedtime" to stop smartphone screen time.
Eligibility Criteria
You may qualify if:
- Participants must be between the ages of 13 and 25 years of age, own an iPhone, use their phone more than 2 hours/day at baseline and be able to read and write in English.
You may not qualify if:
- Outside age limits, does not own an iPhone, cannot read and write in English.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Prince Edward Island
Charlottetown, Prince Edward Island, C1A 4P3, Canada
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Travis Saunders, PHD
University of Prince Edward Island
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 12, 2018
First Posted
November 26, 2018
Study Start
December 1, 2018
Primary Completion
June 30, 2019
Study Completion
June 30, 2019
Last Updated
January 29, 2021
Record last verified: 2018-11