WalkIT Arizona: Walking Interventions Through Texting

Not Applicable

Completed

• Conditions: Behavior; Physical Activity; Goals
• Interventions: Behavioral: Static Goals; Behavioral: Adaptive Goals; Behavioral: Immediate Micro-Incentives; Behavioral: Delayed (non-contingent) Incentives

• Registration Number: NCT02717663
• Lead Sponsor: Arizona State University

Brief Summary

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.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2016-03-10
• Study First Submitted QC: 2016-03-18
• Study First Posted: 2016-03-24
• Study Start: 2016-05
• Primary Completion: 2020-08
• Study Completion: 2020-08
• Status Verified: 2021-10
• Last Update Submitted: 2021-10-26
• Last Update Posted: 2021-10-28

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 512

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: FACTORIAL

Arm && Interventions

Group	Intervention	Description
Static goals with immediate rewards	Immediate Micro-Incentives	Participants will receive static physical activity goals with immediate rewards
Static goals with delayed incentives	Static Goals	Participants will receive static physical activity goals with delayed, non-contingent incentives
Adaptive goals with delayed incentives	Delayed (non-contingent) Incentives	Participants will receive adaptive physical activity goals with delayed, non-contingent incentives
Adaptive goals with immediate rewards	Adaptive Goals	Participants will receive adaptive physical activity goals with immediate rewards
Static goals with delayed incentives	Delayed (non-contingent) Incentives	Participants will receive static physical activity goals with delayed, non-contingent incentives
Adaptive goals with delayed incentives	Adaptive Goals	Participants will receive adaptive physical activity goals with delayed, non-contingent incentives
Static goals with immediate rewards	Static Goals	Participants will receive static physical activity goals with immediate rewards
Adaptive goals with immediate rewards	Immediate Micro-Incentives	Participants will receive adaptive physical activity goals with immediate rewards

Primary Outcome Measures

Name	Time	Method
Change in mean ActiGraph accelerometer-derived moderate-to-vigorous physical activity min/day (MVPA min/day) between study arms.	12 months
Change in mean ActiGraph accelerometer-derived moderate-to-vigorous physical activity min/day (MVPA min/day) across high walkable (vs. low walkable) neighborhoods by 12 months.	12 months
Change in mean ActiGraph accelerometer-derived moderate-to-vigorous physical activity min/day (MVPA min/day) across high walkable (vs. low walkable) neighborhoods by 24 months	24 months

Secondary Outcome Measures

Name	Time	Method
Change in self-reported physical activity measured by the International Physical Activity Questionnaire (IPAQ).	12 months
Change in mean fitness (VO2max measured by treadmill test) between study arms.	12 months

Trial Locations

Locations (1)

Arizona State University; 🇺🇸 Phoenix, Arizona, United States