Personalized text messages to help young adults move more

Efficacy of Precision Text Messaging to Increase Physical Activity in Insufficiently-Active Young Adults

NIH-funded research University of Michigan at Ann Arbor · NIH-11136520

This project sends tailored text messages based on your phone and wearable data to help young adults who are not active move more and sit less.

Quick facts

Grant typeNIH-funded research
Study typeNIH-funded research
Funding institutionUniversity of Michigan at Ann Arbor NIH-funded
Lab location1 site (Ann Arbor, United States)
Project IDNIH-11136520 on NIH RePORTER

What this research studies

You would wear an activity tracker and allow the study to use phone and weather data to learn your activity patterns. The team uses computer algorithms to decide when and what text messages to send so messages fit your daily routine and the weather. Messages are adjusted over time based on how you respond so the dosing becomes more personal. The aim is to nudge you to be more active and prevent gradual weight gain.

Who could benefit from this research

Good fit: Ideal candidates are adults 21 and older who are currently insufficiently active, own a smartphone, and are willing to wear an activity tracker and receive text messages.

Not a fit: People who are already regularly active, who do not use a smartphone or wearable, or who do not want to receive texts are unlikely to benefit from this program.

Why it matters

Potential benefit: If successful, this approach could help participants increase daily activity, reduce sedentary time, and slow weight gain that raises heart disease risk.

How similar studies have performed: The team’s pilot work showed feasibility and some promising signals, and other digital-texting activity programs have produced mixed but sometimes positive results.

Where this research is happening

Ann Arbor, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.