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NCT03939572 · ClinicalTrials.gov registry record · NA
Effects of Physical Activity Adequacy Mindsets on Health and Wellbeing
A NA study, sponsored by Stanford University.
- Completed
- Registry status
- NA
- Development phase
- 164
- Enrollment target
NCT03939572: Completed NA study, sponsored by Stanford University.
NCT03939572 is a NA study that has completed, run by Stanford University. The registered enrollment target is 164 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (88% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03939572, a NA study, has completed, sponsored by Stanford University.
- COMPLETED
- Registry status
- NA
- Development phase
- 164 participants
- Enrollment target
Study Summary
It is widely known that physical activity is important for health and wellbeing, yet most Americans do not meet recommended levels of activity. People may commonly believe that only the actual amount of physical activity matters for health and wellbeing. However, the investigators propose that individuals' mindsets about the adequacy of their level of physical activity and its corresponding health consequences (activity adequacy mindsets) affect health outcomes, over and above their actual level of physical activity. In recent years, health technologies such as wearable fitness trackers have become popular tools to promote higher levels of physical activity. This study leverages the tracking and feedback capabilities of Apple Watch to study the effects of mindsets about physical activity on health and wellbeing, as well as the pathways through which these effects may occur.
Primary Outcome
Perceived Amount of Exercise (manipulation check), measured via 1-item self-report in all surveys. The full item is "Overall, how much exercise did you get today?", range 1 (None at all) - 5 (A great deal), with high values considered a better outcome.
Interventions
- BEHAVIORAL Accurate step count feedback
- BEHAVIORAL Deflated step count feedback
- BEHAVIORAL Inflated step count feedback
- BEHAVIORAL Accurate feedback + mindset intervention
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 164 participants |
| Start Date | 2018-05-30 |
| Est. Completion | 2019-11-15 |
| Phase | NA |
What the finished NCT03939572 record still lists
NCT03939572 is an interventional study that assigns participants to a tested intervention. The registered 164 participants enrollment target is mid-sized for trials with a published cap, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (88% lower).
The record links to 0 conditions, and to 4 interventions - of which Accurate step count feedback is the first listed.
NCT03939572 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03939572 about?
NCT03939572 is a clinical study titled "Effects of Physical Activity Adequacy Mindsets on Health and Wellbeing". It is widely known that physical activity is important for health and wellbeing, yet most Americans do not meet recommended levels of activity. People may commonly believe that only the actual amount of physical activity matters for health and wellbeing. However, the investigators propose that indiv...
What is the current status of trial NCT03939572?
This trial is currently completed. It is a NA study. The enrollment target is 164 participants. The study started on 2018-05-30. Estimated completion is 2019-11-15.
What interventions are being tested in trial NCT03939572?
The interventions under investigation include: Accurate step count feedback (BEHAVIORAL), Deflated step count feedback (BEHAVIORAL), Inflated step count feedback (BEHAVIORAL), Accurate feedback + mindset intervention (BEHAVIORAL).
Who is sponsoring clinical trial NCT03939572?
This trial is sponsored by Stanford University, which has 1,744 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03939572's enrollment target sits among peer trials
164 626th of 2000 higher than 1,374 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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