Mobile Supportive Teams for Reinforcing Increased Daily Exercise Study

NCT06662292 | Recruiting

• 2 other identifiers: Pro00133610R01DK138115
• Study Type: interventional
• Target: 300
• Locations: 1 country
• Sites: 1

Brief Summary

The goal of this research is to examine the addition of a digitally delivered social support training approach to an existing digital program designed to promote a physically active lifestyle among self-selected teams of adults who are not meeting physical activity guidelines. The main aims are to:

1. 1.Determine if the social support training intervention promotes significantly greater changes in moderate-to-vigorous intensity aerobic physical activity (such as a brisk walk) as measured by an accelerometer (research grade physical activity measurement device) at 3 months compared to the same intervention without social support training among self-selected teams of adults who are not meeting the physical activity guidelines.
2. 2.Determine if the social support training intervention promotes significantly greater changes in social support, motivation, accountability, and autonomy social support (free from excessive control and encouraging one's free will) at 3 months and 12 months compared to the same intervention without social support training.
3. 3.Determine if the social support training intervention promotes significantly greater changes in moderate-to-vigorous intensity aerobic physical activity as measured by an accelerometer at 12 months compared to the same intervention without social support training.
4. 4.Explore whether social support mediates increased and sustained moderate-to-vigorous intensity aerobic physical activity among the entire sample of participants.

Conditions

Physical Activity

Keywords

physical activity; exercise; adults; social support; smartphone; electronic health; mobile health; teams

Outcome Measures

Primary Outcomes (1)

• Change in minutes per week of moderate-to-vigorous intensity aerobic physical activity (MVPA) at 3 months

  Change in minutes per week of moderate-to-vigorous intensity aerobic physical activity (MVPA) from baseline to 3 months as measured by accelerometer

  Baseline and 3 months

Secondary Outcomes (9)

• Change in minutes per week of moderate-to-vigorous intensity aerobic physical activity (MVPA) at 12 months

  3 months and 12 months

• Change in supportive accountability at 3 months

  Baseline and 3 months

• Change in motivation at 3 months

  Baseline and 3 months

• Change in supportive accountability at 12 months

  3 months and 12 months

• Change in motivation at 12 months

  3 months and 12 months

Other Outcomes (1)

• Mediation analysis of social support on moderate-to-vigorous intensity aerobic physical activity

  3 months and 12 months

Study Arms (2)

Team Program

ACTIVE COMPARATOR

Teams randomized to this arm will be provided with personal physical activity goals focused on moderate-to-vigorous intensity aerobic physical activity minutes and steps. They will also be provided with a Fitibt wearable smartwatch for self-monitoring physical activity, receive weekly electronic feedback for the first month of the intervention about their physical activity progress, and have access to a mobile-compatible study web app containing behavior change content and physical activity progress information.

Behavioral: Mobile STRIDES app (psychoeducation features); Behavioral: Mobile STRIDES app (self-regulation features)

Team+Training Program

EXPERIMENTAL

Teams randomized to this arm will receive the same intervention as the Team study arm, as well as digitally delivered social support training.

Behavioral: Mobile STRIDES app (psychoeducation features); Behavioral: Mobile STRIDES app (self-regulation features); Behavioral: Mobile STRIDES app (social support training features)

Interventions

Mobile STRIDES app (psychoeducation features) BEHAVIORAL

Twelve theory-based physical activity behavior change lessons/modules during the course of the 3-month intervention.

Team Program; Team+Training Program

Mobile STRIDES app (self-regulation features) BEHAVIORAL

Personalized physical activity goals focused on moderate-to-vigorous intensity aerobic physical activity and steps. Physical activity (tracked with a Fitbit wearable smartwatch and synced with the Mobile STRIDES app) tracking component, displaying team and individual progress. Weekly individualized feedback messages crafted by a trained professional for the first month of the intervention.

Team Program; Team+Training Program

Mobile STRIDES app (social support training features) BEHAVIORAL

For the experimental group, the Mobile STRIDES app also includes five social support training lessons/modules (during the course of the 3-month intervention) focused on providing guidance related to effective communication when exchanging social support for physical activity within a team. In addition, six team feedback messages will be delivered to respective teams throughout the course of the 3-month intervention to reinforce content taught via the training lessons/modules. A weekly poll will also be administered that complements the social support training lessons, with cumulative results displayed.

Team+Training Program

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Participants must:
• be at least 18 years of age
• be insufficiently physically active (\< 150 minutes per week of moderate-intensity equivalent aerobic physical activity as measured by waist-worn accelerometer (research grade physical activity measurement device) - i.e., sum of time spent in minutes of moderate-intensity activity plus twice the minutes spent in vigorous-intensity activity \< 150 minutes per week)
• be part of a self-selected team of 3-8 individuals each of whom also meet all other eligibility criteria (members of the same household are only eligible to participate if they are on the same team - limit one team per household)
• have access to a smartphone (Android or iphone operating system-based) with an internet connection
• report being able to walk at least ¼ mile without stopping
• be able to provide informed consent
• complete all screening and baseline questionnaires and activities

You may not qualify if:

• participating in another physical activity study or program
• are pregnant, breastfeeding, less than 6 months post-partum, or plan to become pregnant during the time frame of the investigation
• report a medical condition that would affect the safety and/or efficacy of a physical activity program (e.g., terminal illness; uncontrolled heart condition, dementia, bulimia nervosa or binge eating disorder, other significant psychiatric problems, or use of insulin)
• report conditions that in the judgment of the Principal Investigator would render them unlikely to be able to independently follow the intervention protocol for 3 months, including conditions which might compromise their ability to engage independently with the intervention website materials and wearable physical activity tracker, as well as complete online questionnaires and adhere to wearing an accelerometer

Sponsors & Collaborators

• University of South Carolina: lead
• National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK): collaborator

Study Sites (1)

University of South Carolina

Columbia, South Carolina, 29208, United States

RECRUITING

MeSH Terms

Conditions

Motor Activity

Condition Hierarchy (Ancestors)

Behavior

Study Officials

• Courtney Monroe, PhD

  University of South Carolina

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Courtney Monroe, PhD

CONTACT

803-766-6275; cmmonroe@mailbox.sc.edu

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor

Study Record Dates

• First Submitted: October 22, 2024
• First Posted: October 28, 2024
• Study Start: August 28, 2025
• Primary Completion (Estimated): November 1, 2027
• Study Completion (Estimated): November 1, 2028
• Last Updated: October 15, 2025

Record last verified: 2025-10

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, SAP, ICF
• Time Frame: The data will be made available 12 months after the publication of the article(s) that reported the data.
• Access Criteria: Data will be made available via a study account posted on the Open Science Framework (https://www.osf.io)

Locations

US (1)