Clinical trial NCT04464993: StandUPTV: Reducing Sedentary Screen Time in Adults
Official title: StandUPTV: Reducing Sedentary Screen Time in Adults
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Sedentary Behavior
Screen Time
Physical Activity
Sleep
Keywords: Multiphase optimization strategy
Mobile health
Lead sponsor: Arizona State University
Sponsor class: OTHER
Collaborators: name: California Polytechnic State University-San Luis Obispo
First posted: 2020-07-09
Enrollment: 110
Sex: ALL
Minimum age (years): 23
Maximum age (years): 64
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: FACTORIAL
Intervention model description: Investigators will use the multiphase optimization (MOST) framework to conduct a highly efficient full-factorial experimental study to simultaneously test the main effects for each of three intervention components (LOCKOUT, TEXT, EARN) and their interactions (e.g., TEXT+EARN; LOCKOUT+EARN+TEXT) over 16 weeks.
Primary purpose: PREVENTION

Brief summary: The goal of this study is to develop an optimized intervention for reducing leisure sedentary screen time (SST) in middle-aged adults with overweight or obesity. Investigators will use the multiphase optimization (MOST) framework to conduct a highly efficient full-factorial experimental study to simultaneously test the main effects for each of three intervention components (LOCKOUT, TEXT, EARN) and their interactions (e.g., TEXT+EARN; LOCKOUT+EARN+TEXT) over 16 weeks.

Detailed description: Primary Aim: To identify which component(s) from three components under consideration for inclusion in StandUPTV reduce SST by \>60 min per day per day at 16 weeks. The three components tested will be: (a) LOCKOUT (no vs. yes); (b) TEXT (no vs. yes); and (c) EARN (no vs. yes). The investigators will use a highly efficient experimental strategy to detect effects of individual components as well as all two- and three-way interactions.

The secondary aim of this study is to examine how reductions in SST displace time into other active behaviors, i.e., light-intensity physical activity (LPA), moderate-to vigorous physical activity (MVPA) and activity type (e.g., housework, walking, exercise behaviors). The investigators will use both device-based (activPAL3c) and self-report (ACT24) measures to understand whether SST displacement can increase active behaviors, particularly MVPA.

Eligibility criteria: Inclusion Criteria:

* 23-64.90 years of age
* BMI≥25 kg/m2
* 3+ h/day of SST
* Insufficiently active
* Own an Apple or Android smartphone/tablet
* Access to internet at home or unlimited data plan
* Willing to download StandUPTV
* Able to read/understand English
* Willing to be randomized

Exclusion Criteria:

* Current smoker (more than once per week)
* Major life event (e.g., move out of study area, pregnant)
* MVPA contraindicated
* Occupation requires media use or high amounts of physical activity
* Drug abuse, major illness and/or psychological disorder

Primary outcomes:
measure: Changes in Sedentary Screen Time
timeFrame: Baseline to 16 weeks
Secondary outcomes:
measure: Changes in Moderate to Vigorous Physical Activity
timeFrame: Baseline to16 weeks
measure: Changes in Time Spent Sitting
timeFrame: Baseline to 16 weeks
measure: Changes in Time Spent Standing
timeFrame: Baseline and 16 weeks
measure: Changes in Time Spent Stepping
timeFrame: Baseline to 16 weeks
Other outcomes:
Locations:
city: Tempe
country: United States
facility: Arizona State University
state: Arizona
city: San Luis Obispo
country: United States
facility: California Polytechnic University San Luis Obispo
state: California
Study officials:
affiliation: Arizona State University
name: Matthew P Buman, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: California Polytechnic University - San Luis Obispo
name: Sarah Keadle, PhD
role: PRINCIPAL_INVESTIGATOR
References: