Improving how we measure physical activity and energy use in adults using advanced sensors

Use of accelerometer and gyroscope data to improve precision of estimates of physical activity type and energy expenditure in free-living adults

NIH-funded research University of Tennessee Knoxville · NIH-11086618

This study is looking at how using special wearable devices can help us better understand the different types of physical activities you do and how much energy you use while being active, so if you're an adult interested in getting more accurate health insights, this research might be for you!

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Tennessee Knoxville NIH-funded
Lab location1 site (Knoxville, United States)
Project IDNIH-11086618 on NIH RePORTER

What this research studies

This research investigates the use of wearable devices that combine accelerometer and gyroscope data to more accurately assess physical activity types and energy expenditure in adults. Current methods primarily rely on accelerometers, which may not capture all movements effectively, especially those involving turning. By integrating data from both types of sensors, the study aims to enhance the precision of activity classification and energy estimates, potentially leading to better health insights for individuals. Participants will wear devices like the ActiGraph GT9X on their hips, wrists, or ankles to collect comprehensive movement data.

Who could benefit from this research

Good fit: Ideal candidates for this research are adults aged 21 and older who are interested in understanding their physical activity patterns and energy use.

Not a fit: Patients who are unable to wear wearable devices or those with severe mobility limitations may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could provide individuals with more accurate assessments of their physical activity levels and energy expenditure, leading to better health management.

How similar studies have performed: Previous research has shown that combining accelerometer and gyroscope data can significantly improve the accuracy of physical activity assessments, indicating a promising approach.

Where this research is happening

Knoxville, 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.