Evaluating the Impact of Personalized Move Goals on Physical Activity

Study Overview
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Brief Summary
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The purpose of this study is to evaluate the impact of personalized move goals in the Welltory mobile app on daily step count among adults from 30 to 65 years old. The study also aims to assess how personalized move goals impact workout quality and frequency.

Detailed Description
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The Welltory app sends users messages with move goals to help people move smarter. Adapted daily based on each user's historical data and overall wellbeing, Welltory's move goals gradually increase physical activity levels, motivating sedentary people to move more without demanding drastic lifestyle changes. This randomized controlled study will assess if messages with personalized move goals in the Welltory mobile app help increase physical activity among adults. Participants include individuals aged 30-65 who use iPhones, wear an Apple Watch, and lead sedentary lifestyles (their median daily step count does not exceed 6,000). Participants are selected among active Wellotry mobile app users who had previously not received any messages with move goals. All participants are randomly assigned to 3 groups: Participants in group 1 receive daily messages with personalized move goals in the Welltory mobile app. Personalized move goals are computed based on each participant's historical physical activity data and their daily wellbeing. Participants in group 2 receive daily messages with a static move goal of 10,000 steps per day in the Welltory mobile app. Participants in group 3 use the Welltory mobile app but don't receive any messages with move goals. For all participants, steps and workouts are automatically registered by their Apple Watch wearable devices and the Welltory mobile app. Additionally, participants regularly measure their body weight and manually record it in the Welltory mobile app. This study's duration spans a total of 24 weeks for each participant.

Official Title
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Evaluating the Impact of Personalized Move Goals in a Mobile App on Physical Activity

Conditions
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Sedentary Lifestyle, Physical Activity

Intervention / Treatment
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* Behavioral: Personalized move goals
* Behavioral: Constant move goals


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Using an iPhone smartphone Using an Apple Watch Willing to use the Welltory app every day for 6 months Median daily step count is less than 6,000 in the month before the beginning of this study Exclusion Criteria: Already participating in another physical activity study Known medical conditions or physical problems that require special attention in an exercise program Pregnant/gave birth in the past 6 month

Ages Eligible for Study
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Minimum Age: 30 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Personalized move goals<br>Participants will be sent daily messages in the Welltory mobile app with personalized move goals that are based on each participant's historical physical activity data and their daily wellbeing | Behavioral: Personalized move goals<br>* Personalized move goals delivered by the Welltory mobile app<br>|
| Active Comparator: Constant move goals<br>Participants will be sent daily messages in the Welltory mobile app with a static move goal of 10,000 steps per day | Behavioral: Constant move goals<br>* Static move goal delivered by the Welltory mobile app<br>|
| No Intervention: No intervention<br>Participants will not be sent any messages with move goals in the Welltory mobile app | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change from Baseline Average Steps per Day at 4 weeks |  | Baseline, 4 weeks | 
| Change from Baseline Average Steps per Day at 8 weeks |  | Baseline, 8 weeks | 
| Change from Baseline Average Steps per Day at 12 weeks |  | Baseline, 12 weeks | 
| Change from Baseline Average Steps per Day at 24 weeks |  | Baseline, 24 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change from Baseline Body Weight at 12 weeks | Body weight in kilograms | Baseline, 12 weeks | 
| Change from Baseline Body Weight at 24 weeks | Body weight in kilograms | Baseline, 24 weeks | 
| Workouts at 4 weeks | Total number of workouts over 20 minutes during first 4 weeks of intervention | 4 weeks | 
| Workouts at 8 weeks | Total number of workouts over 20 minutes during first 8 weeks of intervention | 8 weeks | 
| Workouts at 12 weeks | Total number of workouts over 20 minutes during first 12 weeks of intervention | 12 weeks | 
| Workouts at 24 weeks | Total number of workouts over 20 minutes during 24 weeks of intervention | 24 weeks | 
| Active calories during workouts at 4 weeks | All active calories burned during workouts over 20 minutes | 4 weeks | 
| Active calories during workouts at 8 weeks | All active calories burned during workouts over 20 minutes | 8 weeks | 
| Active calories during workouts at 12 weeks | All active calories burned during workouts over 20 minutes | 12 weeks | 
| Active calories during workouts at 24 weeks | All active calories burned during workouts over 20 minutes | 24 weeks |