NCT01410812

Brief Summary

The investigators propose that healthy behaviors such as exercise could be increased through the use of tying devices - mechanisms that force a coupling of addictive activities (listening to the next chapter of a page-turner novel) with engagement in a healthy behavior (exercise).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
226

participants targeted

Target at P75+ for not_applicable healthy

Timeline
Completed

Started Sep 2011

Typical duration for not_applicable healthy

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 3, 2011

Completed
2 days until next milestone

First Posted

Study publicly available on registry

August 5, 2011

Completed
27 days until next milestone

Study Start

First participant enrolled

September 1, 2011

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2011

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2012

Completed
6.3 years until next milestone

Results Posted

Study results publicly available

December 19, 2018

Completed
Last Updated

December 19, 2018

Status Verified

January 1, 2018

Enrollment Period

3 months

First QC Date

August 3, 2011

Results QC Date

June 6, 2017

Last Update Submit

December 17, 2018

Conditions

Keywords

Interest in exercising more

Outcome Measures

Primary Outcomes (1)

  • Average Weekly Gym Attendance From Baseline to Week 9

    9 weeks

Secondary Outcomes (1)

  • Dollar Amount Participants Would Pay for Enrollment

    9 weeks

Study Arms (3)

Suggested Tying

EXPERIMENTAL

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.

Behavioral: Suggested Tying Intervention

Forced Tying

EXPERIMENTAL

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.

Behavioral: Forced Tying Intervention

Control

EXPERIMENTAL

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

Behavioral: Control

Interventions

ControlBEHAVIORAL

Receive weekly emails asking participants about their exercise and receive cash.

Control

Participants receive 4 iTunes audio novels for their own iPods to listen to only at the gym

Suggested Tying

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.

Forced Tying

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Stable health as determined by the screening of their medical history
  • 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

You may not qualify if:

  • Recent myocardial infraction
  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Pennsylvania

Philadelphia, Pennsylvania, 19104, United States

Location

Results Point of Contact

Title
Katherine L. Milkman, Ph.D.
Organization
University of Pennsylvania

Study Officials

  • Katherine L. Milkman, Ph.D.

    University of Pennsylvania

    PRINCIPAL INVESTIGATOR
  • Julia A Minson

    University of Pennsylvania

    PRINCIPAL INVESTIGATOR
  • Kevin G.M. Volpp, MD, Ph.D.

    University of Pennsylvania

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 3, 2011

First Posted

August 5, 2011

Study Start

September 1, 2011

Primary Completion

December 1, 2011

Study Completion

September 1, 2012

Last Updated

December 19, 2018

Results First Posted

December 19, 2018

Record last verified: 2018-01

Locations