Physical Activity and Leisure-time Study (PALS) (PALS)

October 10, 2012 updated by: University of Tennessee

TV Commercial Stepping: Can America's Top Sedentary Activity be Made More Active

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 Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

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.

Study Type

Interventional

Enrollment (Actual)

58

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Tennessee
      • Knoxville, Tennessee, United States, 37920
        • HPER Building, 1914 Andy Holt Ave.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

25 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

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.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: 30-min walk
Instructed to use "brisk" walking (at least 30 min/day in bouts of at least 10 min) at least 5 days/week. Participants were permitted to exercise in one long bout (30 min) or divide the exercise into multiple bouts as long as the bout length was 10 min or greater.
Behavioral: 30-min walk
Participants were instructed to use "brisk" walking (at least 30 min/day in bouts of at least 10 min) at least 5 days/week. Both conditions will receive an ankle mounted Omron pedometer, so they were able to track their steps each day. Participants were not given instructions concerning diet modification or modifying TV viewing time during a 6 month behavioral physical activity intervention
Other Names:
  • standard physical activity prescription
Experimental: TV commercial stepping
Instructed to stand and "briskly" step in place, or "briskly" walk continuously around the room/house for the duration of each commercial break during at least 90 min of TV programming on at least 5 days/week. Rather than exercising continuously for at least 10-minute bouts, participants performed multiple (~9 or 10), short (~3-5 min) bouts, conveniently incorporated into their daily TV viewing time.
Behavioral: TV commercial stepping
Participants were instructed to stand and "briskly" step in place, or "briskly" walk continuously around the room/house for the duration of each commercial break during at least 90 min of TV programming on at least 5 days/week. Both conditions will receive an ankle mounted Omron pedometer, so they were able to track their steps each day. Participants were not given instructions concerning diet modification or modifying TV viewing time during a 6 month behavioral physical activity intervention
Other Names:
  • novel exercise prescription

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Physical Activity (Steps/Day)
Time Frame: 0 and 6 months
Change in pedometer measured steps per day between 0 and 6 months
0 and 6 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Total Energy Intake
Time Frame: 0 and 6 months
Change in total energy intake(kcals/day) between 0 and 6 months
0 and 6 months
TV Related Energy Intake
Time Frame: 0 and 6 months
Change in energy intake (kcals/day) while watching TV between 0 and 6 months
0 and 6 months
Weight
Time Frame: 0 and 6 months
Change in weight in kgs between 0 and 6 months
0 and 6 months
TV Viewing Time
Time Frame: 0 and 6 months
Change in self-reported TV viewing time per day between 0 and 6 months
0 and 6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Tennessee

Investigators

  • Principal Investigator: Jeremy A Steeves, MS, University of Tennessee
  • Study Chair: Dixie Lee Thompson, Phd, University of Tennessee

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 2010

Primary Completion (Actual)

June 1, 2011

Study Completion (Actual)

June 1, 2011

Study Registration Dates

First Submitted

April 21, 2011

First Submitted That Met QC Criteria

April 25, 2011

First Posted (Estimate)

April 27, 2011

Study Record Updates

Last Update Posted (Estimate)

November 9, 2012

Last Update Submitted That Met QC Criteria

October 10, 2012

Last Verified

October 1, 2012

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • UTennessee

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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