WalkIT Arizona: Walking Interventions Through Texting

Arizona State University (ASU)

Status: Completed

Conditions: Behavior; Physical Activity; Goals

Treatments: Behavioral: Immediate Micro-Incentives; Behavioral: Static Goals; Behavioral: Delayed (non-contingent) Incentives; Behavioral: Adaptive Goals

Study type: Interventional

Funder types: Other; NIH

Identifiers

NCT02717663

R01CA198915 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

The purpose of this study is to develop adaptive (AI) and micro-incentive (MI) interventions and test them against static (SI) and delayed-incentive (DI) interventions in a 4-arm randomized factorial trial to increase MVPA adoption and maintenance among inactive adults. Using neighborhood walkability and socioeconomic status, participants will be recruited from four neighborhood types: "high walkable/high SES," "high walkable/low SES," "low walkable/high SES," and "low walkable/low SES." We will evaluate synergistic or antagonistic effects of interventions and neighborhood factors on MVPA adoption by 12 months and maintenance by 24 months.

Enrollment: 512 patients

Sex: All

Ages: 18 to 60 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• women and men of all races/ethnicities living in Maricopa County, Arizona

Exclusion criteria

• Live in one of the eligible neighborhood quadrants in Maricopa County, Arizona
• Adult men and women between 18 and 60 years old
• Inactive as screened by the International Physical Activity Questionnaire (IPAQ) short form and confirmed by baseline accelerometer measures
• No history of heart failure or type 2 diabetes
• No contraindications to exercise testing or requirement for medically supervised exercise (assessed by Physical Activity Readiness Questionnaire+ (PAR-Q+).
• Not currently pregnant and not planning to becoming pregnant in the next 2 years
• Not currently participating in physical activity, diet, or weight loss programs
• Daily access to a mobile phone with text messaging capabilities or an iOS or Android smartphone
• Willing to wear a small accelerometer on the wrist daily for 1 year
• Willing to send and receive 2-3 text messages per day for 1 year
• Not planning to be outside of Maricopa County for > 30 days consecutively in the next 2 years
• Not planning to move from their current home in the next 2 years

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Factorial Assignment

Masking: Single Blind

---

512 participants in 4 patient groups

Static goals with delayed incentives

Experimental group

Description:

Participants will receive static physical activity goals with delayed, non-contingent incentives

Treatment:

Behavioral: Static Goals

Behavioral: Delayed (non-contingent) Incentives

Adaptive goals with delayed incentives

Experimental group

Description:

Participants will receive adaptive physical activity goals with delayed, non-contingent incentives

Treatment:

Behavioral: Adaptive Goals

Behavioral: Delayed (non-contingent) Incentives

Static goals with immediate rewards

Experimental group

Description:

Participants will receive static physical activity goals with immediate rewards

Treatment:

Behavioral: Immediate Micro-Incentives

Behavioral: Static Goals

Adaptive goals with immediate rewards

Experimental group

Description:

Participants will receive adaptive physical activity goals with immediate rewards

Treatment:

Behavioral: Immediate Micro-Incentives

Behavioral: Adaptive Goals