Sedentary Lifestyle Clinical Trial
Official title:
The Effects of Smartphone Use on Physical Activity, Sedentary Behaviour, Sleep, and Well-being
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.
Participants will be asked to visit the Active Living Lab on 3 occasions. We expect each visit to take 30-60 minutes. At baseline, participants will meet with members of the research team to provide informed consent (ages 16+) or parent/guardian consent + participant assent (ages 13-15). Researchers will then record participants' baseline age, gender, height and weight. Participants will then be instructed to download the In The Moment iPhone application which will be used to measure smartphone use. Upon leaving the lab, all participants will be provided with an ActivPAL inclinometer to be worn on the leg, and a Fitbit Flex to be worn on the wrist for 7 days to measure sedentary behaviour, physical activity and sleep. Following the week of baseline data collection, participants will return to the lab to complete a series of questionnaires focusing on self-reported sedentary behaviour (International Sedentary Assessment Tool, Sedentary Disorder Scale, Social Media Disorder Scale and SHAPES sedentary behaviour questionnaire), physical activity (International Physical Activity Questionnaire), sleep (Pittsburgh Sleep Index), food intake (SHAPES food frequency questionnaire) and mental health (Positive and Negative Affect Schedule and Center for Epidemiologic Studies Depression Scale). At this time participants will also be asked to write down the daily time spent using social media apps (this information can be found under Settings on their iPhone). After completing the questionnaires, participants will be told whether they are in the Intervention or Control groups. Participants in the intervention group will be asked to restrict their daily smartphone use by 50%, compared to the week of baseline testing. This will be achieved via the OurPact app, which allows the researchers to limit smartphone use to a specific amount of daily use for 7 days (participants will be asked to download and install the app after being told they are in the Intervention group). Once participants have used their allotted daily smartphone time, entertainment apps will not function until the timer is reset the following day (the address book and calling functions are never restricted, so participants will continue to be able to make/receive phone calls, and access their address book at all times). Participants will also be asked to determine a nightly "bedtime", after which their smartphone will be able to make/receive calls, but no other applications will be available. Participants in the intervention group will also be asked to leave their phones outside of their bedroom at night, and will be provided with a digital alarm clock to reduce the use of phones for this purpose. Participants in the control group will be asked to maintain their typical daily smartphone use for 7 additional days. After the 7 day intervention/control period, participants will return to the lab to complete the questionnaires for a second time, and to return the Fitbit and inclinometer, and have the apps removed from their phones. Participants in the Intervention group will also be asked to complete a questionnaire on their experience with the intervention, and to provide any additional comments on their experience in the intervention. ;
| Status | Clinical Trial | Phase | |
|---|---|---|---|
| Completed |
NCT02385591 -
Innovative Physical Activity Interventions for Overweight Latinos
|
N/A | |
| Completed |
NCT02672215 -
RCT Computer-tailored Intervention on Workplace Sitting
|
N/A | |
| Completed |
NCT03305731 -
Activating Behavior for Lasting Engagement After Stroke
|
N/A | |
| Completed |
NCT02994134 -
Exercise, Cognitive Function and Neuroplasticity in Healthy Adults
|
N/A | |
| Recruiting |
NCT04195165 -
The Effect of Sitting and Moderate Exercise on Plasma Insulin and Glucose Responses to an Oral Glucose Tolerance Test
|
N/A | |
| Completed |
NCT03119610 -
The Physiologic Effects of Intranasal Oxytocin on Sarcopenic Obesity
|
Phase 1/Phase 2 | |
| Active, not recruiting |
NCT02467881 -
Physical Activity and Sedentary Behavior Change; Impact on Lifestyle
|
N/A | |
| Terminated |
NCT02254902 -
Physical Activity and Education Program for Somali Women
|
N/A | |
| Completed |
NCT02342301 -
Cardiometabolic Response to Sit-stand Workstations.
|
N/A | |
| Completed |
NCT01975870 -
A stAPP to a Healthier Lifestyle
|
N/A | |
| Completed |
NCT02024061 -
Treatment of Pediatric Obesity (TOP) - A Multidisciplinary Approach Involving Adolescents and Their Peers
|
N/A | |
| Completed |
NCT02960750 -
Effectiveness of a Workplace "Sit Less and Move More" Web-based Program in Spanish Office Employees (Walk@WorkSpain)
|
N/A | |
| Completed |
NCT00183014 -
Caminemos! Trial to Increase Walking Among Sedentary Older Latinos
|
N/A | |
| Completed |
NCT04049162 -
Blueberry Enhances Activity and Cognition Through Increased Vascular Efficiency
|
N/A | |
| Completed |
NCT03283904 -
Active Schools: Skelmersdale
|
N/A | |
| Completed |
NCT03694951 -
The Effect of Experimentally Decreasing Sedentary Behaviour on Subjective Well-being
|
N/A | |
| Enrolling by invitation |
NCT04019119 -
Digital Intervention for the Modification of Lifestyles (iGame)
|
N/A | |
| Completed |
NCT03109535 -
MapTrek for Sedentary Workers
|
N/A | |
| Completed |
NCT03993652 -
Kids FIRST: Family-based Intervention to Reduce Snacking and Screen Time in Children
|
N/A | |
| Completed |
NCT00891514 -
Trial of Aerobic Exercise Training in Stroke Survivors
|
N/A |