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OpenTrials
Completed

NCT Number: NCT03742778

Incentivizing Reflection and Output in Exercise

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

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Key information

Conditions

Healthy Behavior Motor Activity

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Pennsylvania

Philadelphia, Pennsylvania, 19104, United States

About this study

Gym members register online to participate in a 28-day workout program. Upon registration, participants are assigned to one of two conditions (a condition that incentivizes reflecting on workouts or a condition that incentivizes workouts). Upon registration, participants are prompted to create a workout schedule and are given advice that reflecting on workouts can help build exercise habits. Over the 28-day intervention period, participants receive text message reminders prior to their scheduled workouts and emails reminding them of their schedules. In both conditions, participants receive points every day that they go to the gym, which can be redeemed for a gift card after the intervention period. In the reflection condition, participants can receive bonus points for responding to each of three text messages each week asking about them to reflect on their gym visits. In the output condition, participants receive the same text messages, but receive bonus points for their first three workouts each week, rather than for responding to text messages.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 24 Hour Fitness member

Exclusion criteria

-

Treatment and study plan

Incentivizing reflection

Behavioral

Participants receive bonus incentives for reflecting on their workouts

Incentivizing exercise

Behavioral

Participants receive bonus incentives for exercising

Primary outcomes

  1. Gym visits per week

    Time frame: During the 28-day intervention period

    Number of days the participant goes to the gym

  2. Gym visits per week

    Time frame: During the 4-week post-intervention period

    Number of days the participant goes to the gym

  3. Gym visits per week

    Time frame: During the 10-week post-intervention period

    Number of days the participant goes to the gym

  4. Whether or not a participant visits the gym in a given week

    Time frame: During the 28-day intervention period

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

  5. Whether or not a participant visits the gym in a given week

    Time frame: During the 4-week post-intervention period

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

  6. Whether or not a participant visits the gym in a given week

    Time frame: During the 10-week post-intervention period

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

Secondary outcomes

  1. Gym visits per week

    Time frame: During the 52-week post-intervention period

    Number of days the participant goes to the gym

  2. Whether or not a participant visits the gym in a given week

    Time frame: During the 52-week post-intervention period

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

Sponsors and collaborators

Lead sponsor

University of Pennsylvania

Other

Registry information

Important dates

Study start
2018
Primary completion
2019
Study completion
2019
First posted
Nov 15, 2018
Registry last updated
Jun 11, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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