Expired Study
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Knoxville, Tennessee 37920


Physical inactivity is a major public health problem and a primary contributing factor to the obesity epidemic. While most Americans do not meet the physical activity (PA) guidelines (30 min/day, 5 day/wk), they do report watching several hours of TV each day, and frequently site "lack of time" as a barrier for engaging in PA. The Physical Activity and Leisure-time Study examines an approach convert sedentary TV watching into active TV watching time by having adults step in place during commercials (TV commercial stepping).

Study summary:

This randomized controlled trial will examine the effects of a PA prescription of TV commercial stepping for at least 90 min/day of TV programming, with that of walking at least 30 min/day (30 min walk) on daily step counts, TV viewing, and diet during a 24 week PA intervention. Sedentary, overweight or obese, adults will be randomly assigned to either the TV commercial stepping, or 30 min walk group during a 24-week behavioral PA intervention. Both groups will attend 8 sessions, but receive different PA goals. PA, TV watching time, diet, and anthropometric data will be collected at 0, 12, and 24 weeks. It is hypothesized that the TV commercial stepping condition will, show an equal increase in PA at 12 and 24 weeks as compared to the 30-min walk condition. Neither group is hypothesized to demonstrate changes in TV viewing time, dietary intake, or weight.


Inclusion Criteria: - 25 to 65 years of age - BMI between 25 and 45 kg/m2 - watch ≥14 hours per week of TV - ability to follow instructions and record data - ability to walk 1/4 mile without stopping Exclusion Criteria: - history of myocardial infraction, angina, stroke, heart failure, or uncontrolled cardiac arrhythmias - a resting blood pressure greater than 180 mm Hg systolic and/or 100 mm Hg diastolic - other physical or medical limitations for engaging in physical activity - no television in the home - baseline physical activity level exceeding 7,499 steps per day as determined by the Omron pedometer - currently participating in a program to increase PA - intended to move outside the East Tennessee area within the time frame of the intervention - were pregnant, lactating, less than 6 months post-partum, or planned to become pregnant during the time frame of the intervention - unwilling to attend group intervention meetings, assessments or to complete an activity diary for the duration of the study.



Primary Contact:

Principal Investigator
Jeremy A Steeves, MS
University of Tennessee

Backup Contact:


Location Contact:

Knoxville, Tennessee 37920
United States

There is no listed contact information for this specific location.

Site Status: N/A

Data Source: ClinicalTrials.gov

Date Processed: August 31, 2019

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