Physical Inactivity, Sedentary Behavior
Conditions
Brief summary
The MOV'D (Move Often eVery Day) intervention is a remotely-delivered, peer-supported intervention that delivers exercise snack (2-5 minutes of moderate to vigorous activity) and behavior change technique (BCT) videos to a private social media support group with the goal of interrupting prolonged sitting at work with MVPA minutes. The preliminary efficacy, feasibility, and acceptability trial will test the effects of MOV'D, a socially-supported, evidence-based behavior change technique educational and behavioral intervention to increase the number of active hours (an indirect measure of prolonged sitting bouts) (Hypothesis 1) and number of MVPA minutes (Hypothesis 2). This pilot will gather important estimates of the effect sizes, the variance, and covariance of the primary outcomes to calculate the sample size needed to power a larger fully powered RCT.
Detailed description
Prolonged sitting and inadequate moderate to vigorous intensity physical activity (MVPA) are pervasive risk factors for cardiovascular disease (CVD). Recent research has shown that some benefits of moderate to vigorous physical activity can be accrued in motivationally accessible short, 2-5 minute bouts throughout the day rather than needing to be a single, longer, continuous bout. The MOV'D intervention is a novel, remotely-delivered, social-media-based intervention to interrupt prolonged sitting with short bouts of MVPA, compared with a Fitbit-only control. The investigators will randomly assign participants to either MOV'D or a Fitbit only control for one month, with a one-month follow-up, to compare immediate and prolonged effects of treatment on number of workday hours with activity break and number of MVPA minutes.
Interventions
BEHAVIORALMOV'D (Move Often eVery Day)
The MOV'D intervention is a remotely-delivered, peer-supported intervention that delivers exercise snack (2-5 minutes of moderate to vigorous activity) and behavior change technique (BCT) videos to a private social media support group with the goal of interrupting prolonged sitting at work with MVPA minutes.
BEHAVIORALFitbit Self-Monitoring
All participants receive a Fitbit and are told to monitor their physical activity for the duration of the study period.
Sponsors
National Heart, Lung, and Blood Institute (NHLBI)
Stanford University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE
Intervention model description
This is preliminary efficacy, acceptability, and feasibility pilot with a randomized controlled design. The preliminary efficacy pilot will test the effects of MOV'D, a socially-supported, evidence-based behavior change technique educational and behavioral intervention to increase the number of active hours (an indirect measure of prolonged sitting bouts) (Hypothesis 1) and number of MVPA minutes (Hypothesis 2). The pilot will gather important estimates of the effect sizes, the variance, and covariance of the primary outcomes to calculate the sample size needed to power a larger trial.
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* have smartphone with internet capabilities * spend more than 55% of time sedentary at work * English literacy * safe to exercise, assessed by the Physical Activity Readiness Questionnaire (PAR-Q) * full-time employee at sedentary job
Exclusion criteria
\-
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in average active workday hours at post-intervention | 5 days at baseline, 5 days after 1 month treatment | Average hours with \>2 min of MVPA (Moderate to Vigorous Physical Activity) or 250 steps between 8 AM - 7 PM per workday (of five); proxy for prolonged sitting time |
| Change in average workday MVPA minutes at post-intervention | 5 days at baseline, 5 days after 1 month treatment | Average minutes of moderate to vigorous minutes, or minutes above 3 METs per workday (of five) at |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change in average active workday hours at follow-up | 5 days at baseline, 5 days post 1-month follow-up | Average hours with \>2 min of MVPA or 250 steps between 8 AM - 7 PM per workday (of five); proxy for prolonged sitting time |
| Change in average workday MVPA minutes at follow-up | 5 days at baseline, 5 days post 1-month follow-up | Average minutes of moderate to vigorous minutes, or minutes above 3 METs +per workday (of five) |
Countries
United States
Outcome results
None listed