An interventional study of self-monitoring and daily incentives in Overweight and Obesity, Physical Activity and Incentives, sponsored by University of Colorado, Boulder. Completed at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-10-19.
Sponsored by University of Colorado, Boulder · Not applicable, Interventional, and Basic science
This research seeks to examine psychological factors that may impact relationship between incentives and health behavior engagement, specifically physical activity. Additionally, it will compare the impact of two different incentive schedules on behavior engagement, one providing immediate rewards (i.e. rewards received on a daily basis) and another providing delayed rewards (i.e. rewards received at the end of the study period), with an active self-monitoring intervention condition in which no rewards are offered. Study participants will provide reports of their physical activity each day for three weeks, and in the two incentive conditions, they will receive small monetary rewards for their physical activity. Following the three week reporting and reward period, participants will complete two additional assessments, measuring psychological constructs and behavior engagement following the cessation of rewards. The study will also examine how cognitive and anthropomorphic factors may contribute to intervention response and the effects on psychological constructs.
11,522 studies on the registry are indexed under Obesity; 2,033 are open to participants now.
This study's enrollment of 68 is close to the median of 67 across 9,006 interventional studies indexed under Obesity.
Browse Obesity studies →University of Colorado, Boulder is the lead sponsor of 88 studies on the registry; 20 are open to participants now.
Compared within Obesity, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Overweight. The counts are of registry records indexed under each term, refreshed daily. How we classify →
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Participants self-monitor their physical activity
Behavioral: self-monitoring
daily payments for physical activity
Behavioral: self-monitoring · Behavioral: daily incentives
lump sum payments for physical activity
Behavioral: self-monitoring · Behavioral: delayed lump sum incentives
self-monitoring of physical activity
daily incentive payments for physical activity
delayed lump sum payments for physical activity
Moderate-vigorous physical activity minutes
summed minutes of weekly moderate intensity physical activity \& vigorous intensity physical activity
Time frame: Week 3
Self-Efficacy for physical activity
8-item self-report scale measuring self-efficacy (Social Cognitive Theory, Bandura, 1977; also called "perceived behavioral control", Theory of Planned Behavior, Ajzen, 1985); scores are a mean of 8 items, scored 1-7 with higher scores indicative of greater self-efficacy
Time frame: Week 3
Moderate-vigorous physical activity minutes
summed minutes of weekly moderate intensity physical activity \& vigorous intensity physical activity
Time frame: Week 5
Self-Efficacy for physical activity
8-item self-report scale measuring self-efficacy (Social Cognitive Theory, Bandura, 1977; also called "perceived behavioral control", Theory of Planned Behavior, Ajzen, 1985); scores are a mean of 8 items, scored 1-7 with higher scores indicative of greater self-efficacy
Time frame: Week 5
Attitudes toward physical activity
12-item self-report scale (Theory of Planned Behavior, Ajzen, 1985); scores are a mean of 12 items scored from -5 to +5, with higher scores indicative of more positive attitudes
Time frame: Week 3
Attitudes toward physical activity
12-item self-report scale (Theory of Planned Behavior, Ajzen, 1985); scores are a mean of 12 items scored from -5 to +5, with higher scores indicative of more positive attitudes
Time frame: Week 5
Plan to share: No
No publications or documents are linked to this record.
Ran from Feb 2018 to primary completion in Jun 2018, 4 months.
Of 3,680 non-industry interventional studies with no phase under Obesity, half reached primary completion within 23 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 43. This study's 4 months is below that.
Counting every sponsor, half of 3,843 studies reached it within 22 months; a quarter within 10 and three quarters within 42.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Oct 2018. You cannot join it, but the record below documents what was studied.
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University of Colorado, Boulder