NCT03742765

Brief Summary

This study will test whether incentivizing pre-workout activities (i.e., planning workouts) is more effective than incentivizing actual workouts. This study has two conditions: planning condition (with incentives for planning) vs. output (with incentives for working out). The focus of the incentives will be reinforced by three text messages per week and weekly emails.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
1,200

participants targeted

Target at P75+ for not_applicable healthy

Timeline
Completed

Started Jan 2018

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

Study Start

First participant enrolled

January 31, 2018

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

November 13, 2018

Completed
2 days until next milestone

First Posted

Study publicly available on registry

November 15, 2018

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 28, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 28, 2019

Completed
Last Updated

June 11, 2020

Status Verified

June 1, 2020

Enrollment Period

1.1 years

First QC Date

November 13, 2018

Last Update Submit

June 9, 2020

Conditions

Healthy

Keywords

ExerciseIncentivesPlanning

Outcome Measures

Primary Outcomes (6)

  • Gym visits per week

    Number of times the participant goes to the gym

    During the 28-day intervention period

  • Gym visits per week

    Number of times the participant goes to the gym

    During the 4-weeks post-intervention

  • Gym visits per week

    Number of times the participant goes to the gym

    During the 10-weeks post-intervention

  • Whether or not a participant visits the gym in a given week

    Binary variable capturing whether or not a participant had any gym visits in a given week

    During the 28-day intervention period

  • Whether or not a participant visits the gym in a given week

    Binary variable capturing whether or not a participant had any gym visits in a given week

    During the 4-weeks post intervention

  • Whether or not a participant visits the gym in a given week

    Binary variable capturing whether or not a participant had any gym visits in a given week

    During the 10-weeks post intervention

Secondary Outcomes (2)

  • Gym visits per week

    During the 52-weeks post-intervention

  • Whether or not a participant visits the gym in a given week

    During the 52-weeks post-intervention

Study Arms (2)

Incentivizing Planning

EXPERIMENTAL

Participants will receive three texts each week asking a question to help plan for the next workout, and will receive 500 points for each text they answer. These bonus points are on top of points participants receive for each workout (200 points per workout).

Behavioral: Incentivizing planning

Incentivizing Exercise

EXPERIMENTAL

Participants will receive three texts each week asking a question about their workout. Regardless of whether or not they respond to the texts, participants receive 500 bonus points for their first three workouts during the week. These bonus points are on top of points participants receive for each workout (200 points per workout).

Behavioral: Incentivizing exercise

Interventions

Incentivizing planningBEHAVIORAL

Participants receive bonus incentives for planning their workouts

Incentivizing Planning
Incentivizing exerciseBEHAVIORAL

Participants receive bonus incentives for exercising

Incentivizing Exercise

Eligibility Criteria

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

You may qualify if:

  • Has 24 Hour Fitness gym membership

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Pennsylvania

Philadelphia, Pennsylvania, 19104, United States

Location

MeSH Terms

Conditions

Motor Activity

Condition Hierarchy (Ancestors)

Behavior

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

November 13, 2018

First Posted

November 15, 2018

Study Start

January 31, 2018

Primary Completion

February 28, 2019

Study Completion

February 28, 2019

Last Updated

June 11, 2020

Record last verified: 2020-06

Data Sharing

IPD Sharing
Will not share

Locations

US(1)