Physical Activity and Leisure-time Study (PALS)

NCT ID: NCT01342471

Last Updated: 2012-11-09

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

58 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-09-30

Study Completion Date

2011-06-30

Brief Summary

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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).

Detailed Description

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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.

Conditions

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Physical Activity Weight

Keywords

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Physical activity intervention walking TV sedentary

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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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.

Group Type ACTIVE_COMPARATOR

30-min walk

Intervention Type BEHAVIORAL

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

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.

Group Type EXPERIMENTAL

TV commercial stepping

Intervention Type BEHAVIORAL

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

Interventions

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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

Intervention Type 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

Intervention Type BEHAVIORAL

Other Intervention Names

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novel exercise prescription standard physical activity prescription

Eligibility Criteria

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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.
Minimum Eligible Age

25 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Tennessee

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jeremy A Steeves, MS

Role: PRINCIPAL_INVESTIGATOR

University of Tennessee

Dixie Lee Thompson, Phd

Role: STUDY_CHAIR

University of Tennessee

Locations

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HPER Building, 1914 Andy Holt Ave.

Knoxville, Tennessee, United States

Site Status

Countries

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United States

References

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Steeves JA, Bassett DR, Fitzhugh EC, Raynor H, Cho C, Thompson DL. Physical Activity With and Without TV Viewing: Effects on Enjoyment of Physical Activity and TV, Exercise Self-Efficacy, and Barriers to Being Active in Overweight Adults. J Phys Act Health. 2016 Apr;13(4):385-91. doi: 10.1123/jpah.2015-0108. Epub 2015 Sep 17.

Reference Type DERIVED
PMID: 26383783 (View on PubMed)

Steeves JA, Bassett DR, Fitzhugh EC, Raynor HA, Thompson DL. Can sedentary behavior be made more active? A randomized pilot study of TV commercial stepping versus walking. Int J Behav Nutr Phys Act. 2012 Aug 6;9:95. doi: 10.1186/1479-5868-9-95.

Reference Type DERIVED
PMID: 22866941 (View on PubMed)

Other Identifiers

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UTennessee

Identifier Type: -

Identifier Source: org_study_id