The main objective of this study is to test an intervention to increase the physical activity of medical residents, an employee population with little time for exercise. Specifically, the aims of this study are: 1. To determine if providing medical residents with an activity device that measures steps, distance, and calories burned and tracks this information over time on a website increases residents' physical activity levels as measured by number of steps per day compared to a control group using a blinded activity device (no feedback). 2. To determine if an unblinded team competition using the activity device directly following the randomized phase increases residents' activity level compared to baseline. 3. To determine if activity level is associated with change in weight during the residency year. 4. To determine if the average hours of sleep per week is associated with changes in weight and with activity level.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
104
The activity monitor is an accelerometer that records steps, distance, calories, and sleep
Accelerometer that has all the steps, distance, calories, and sleep data blinded to the study subject
Massachusetts General Hospital
Boston, Massachusetts, United States
Steps Per Day
Steps will be recorded on the activity device
Time frame: 12 weeks
Distance Per Day
Distance in miles recorded on activity device.
Time frame: 12 weeks
Calories Burned Per Day
Total calories burned per day recorded on activity device. This secondary outcome was not measured in the trial.
Time frame: 12 weeks
Weight
Time frame: 6 months
Hours of Sleep Per Night
Number of hours slept per night as recorded on activity device. This secondary outcome was not measured in the trial.
Time frame: 12 weeks
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