Enhancing Physical Activity and Weight Reduction Through Smartcare and Financial Incentives

Summary

The investigators are planning to conduct a pilot RCT of young obese population to evaluate the effect of smartcare with or without financial incentives for 12 weeks. Participants will be randomly assigned to a three-arm of control, smartcare, and smartcare plus financial incentives group.

Conditions

• Obesity

Interventions

DEVICE

smartcare

Fit.life™ wireless physical activity tracker can measure daily physical activity including activity strength and time. It was chosen for its small size, accuracy in the measurement of physical activity, and convenient data upload via Bluetooth on participant mobile phone or wirelessly via a personal computer. Fit.life™ wireless physical activity tracker has been validated for measurement of free-living physical activity in adults \[REF\]. A smartphone application was customized for the use of the investigators' intervention, different for the 'smart care' group and 'smartcare plus financial incentive' group. The version for the latter group included the feature for the monitoring and feedback of financial incentives.

OTHER

financial incentives

Financial incentives are provided in the form of process-based and outcome-based incentive.(maximum 320,000KRW) Process-based incentives were based on daily physical activity level. Participants in the 'smart care plus financial incentive' arms could earn incentives of up to 10,000 KRW per week according to the following schedule: 1,000 KRW if a participant reached target amount of physical activity in a day / An additional 3,000 KRW if a participant reached target amount of physical activity every day in a week. Outcome-based incentives were based on achievement of weight loss target at each visit. 50,000 KRW if a participant reached weight loss target of 3% from the baseline body weight at visit 2 (4 week)/ 50,000 KRW in weight loss target of 5% from the baseline body weight at visit 3 (8 week) / 100,000 KRW in weight loss target of 7% from the baseline body weight at final visit 4 (12 week)

Sponsors & Collaborators

• Korea Health Industry Development Institute

  collaborator OTHER_GOV

• Seoul National University Hospital

  lead OTHER

Principal Investigators

• Belong Cho, MD, MPH, PhD · Depart. of Family Medicine/Center for Health Promotion and Optimal Aging, Seoul National University Hospital

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Model

PARALLEL

Eligibility

Min Age

19 Years

Max Age

45 Years

Sex

MALE

Healthy Volunteers

No

Timeline & Regulatory

Start

2015-03-31

Primary Completion

2015-11-30

Completion

2015-12-31