Evaluating Incentive Designs to Increase Physical Activity Goal Adherence in a Wellness Program

Status

Withdrawn

Phases

Phase 3

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02629601

Enrollment

Registered

2015-12-14

Start date

2016-05-31

Completion date

2016-09-30

Last updated

2016-09-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Physical Activity

Keywords

physical activity, financial incentives, behavioral economics

Brief summary

This is a 4-week, five-arm, randomized, controlled trial to compare a standard wellness incentive program for physical activity to four other designs.

Detailed description

Increased physical activity is associated with numerous health benefits including lower risk of cardiovascular disease. However, many individuals do not achieve physical activity goals. Vitality is a wellness program in South Africa that uses a program called Active Rewards to incentives achievement of weekly physical activity goals. In this study, the investigators will compare the standard active rewards program to doubling the magnitude or adding lottery designs with and without broadcasting the # of winners.

Interventions

BEHAVIORALActive Rewards

Vitality standard active rewards wellness program for physical activity promotion

BEHAVIORALLottery 1

Participants have 1 in 3 chance of winning 3 times the reward and 1 in 100 chance of winning 40 times the reward

BEHAVIORALLottery 2

Participants have 1 in 2 chance of winning 2 times the reward and 1 in 200 chance of winning 80 times the reward

BEHAVIORALBroadcasting winners

Participants are told how many individuals won the lottery during that week.

BEHAVIORALActive Rewards Doubled

Vitality standard active rewards wellness program for physical activity promotion with double the magnitude of incentives

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

SINGLE (Investigator)

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* Vitality member that has activated active rewards program

Exclusion criteria

Design outcomes

Primary

Measure	Time frame	Description
Proportion of participants that acheived their weekly physical activity goal	4 week intervention period	Binary outcome

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026