Study Results
Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.
View full resultsBasic Information
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COMPLETED
NA
226 participants
INTERVENTIONAL
2011-09-30
2012-09-30
Brief Summary
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Detailed Description
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Conditions
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Keywords
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Study Design
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RANDOMIZED
PARALLEL
SUPPORTIVE_CARE
NONE
Study Groups
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Suggested Tying
Receive same treatments as control group, but instead of receiving cash they receive 4 iTunes audio novels for their own iPods. Further, they are prompted to try to listen to those novels only when exercising at the gym in order to increase their attendance.
Suggested Tying Intervention
Participants receive 4 iTunes audio novels for their own iPods to listen to only at the gym
Forced Tying
Receives same treatment as the control group. However, in addition to receiving the cash, they also receive 4 iTunes audio novels for a loaned iPod that they will only have access to at the gym. They are told they may only listen to these novels only when at the gym in order to increase their attendance.
Forced Tying Intervention
Participants receive cash and also 4 iTunes audio novels for a loaned iPod accessible only at the gym to listen to only at the gym.
Control
Control group of participants who do not receive any intervention but are weighed at the beginning and end of a 10 week period and receive weekly emails asking them about their exercise. They also receive the equivalent cash value of 4 iTunes audio novels
Control
Receive weekly emails asking participants about their exercise and receive cash.
Interventions
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Control
Receive weekly emails asking participants about their exercise and receive cash.
Suggested Tying Intervention
Participants receive 4 iTunes audio novels for their own iPods to listen to only at the gym
Forced Tying Intervention
Participants receive cash and also 4 iTunes audio novels for a loaned iPod accessible only at the gym to listen to only at the gym.
Eligibility Criteria
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Inclusion Criteria
* Own an iPod
* An interest in exercising more regularly
* Belong to the Pottruck Gym at University of Pennsylvania
* Interested in exercising more through the use of aerobic exercise machines
Exclusion Criteria
* congestive heart failure
* uncontrolled hypertension
* self-report of 6 or more alcoholic beverages per day or use of any illicit drugs
* bulimia nervosa or related behaviors
* diabetes medication
18 Years
75 Years
ALL
Yes
Sponsors
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University of Pennsylvania
OTHER
Responsible Party
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Principal Investigators
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Katherine L. Milkman, Ph.D.
Role: PRINCIPAL_INVESTIGATOR
University of Pennsylvania
Julia A Minson
Role: PRINCIPAL_INVESTIGATOR
University of Pennsylvania
Kevin G.M. Volpp, MD, Ph.D.
Role: PRINCIPAL_INVESTIGATOR
University of Pennsylvania
Locations
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University of Pennsylvania
Philadelphia, Pennsylvania, United States
Countries
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Other Identifiers
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813970
Identifier Type: -
Identifier Source: org_study_id
NCT01421329
Identifier Type: -
Identifier Source: nct_alias