Smartwatch fitness test? study aims to replace lab treadmill with wearable sensors
NCT ID NCT05678530
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study is testing whether wearable sensors, like those in smartwatches, can accurately estimate a key measure of heart and lung fitness called VO2Max during everyday activities. Researchers will collect data from 1,000 participants, including healthy volunteers and patients undergoing standard exercise tests. The goal is to develop a machine learning algorithm that could make fitness tracking more accessible without needing special lab equipment.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If successful, this could lead to a simple way to measure heart and lung fitness using wearable devices, making it easier for people to track their health without needing a lab test.
What could go wrong
This is an early observational study focused on data collection, not a treatment. The algorithm may not be accurate enough for widespread use, and results may not apply to everyone.
Disclaimer
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Study contacts
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Contact
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Advocate Aurora Health Institute
COMPLETEDOakbrook Terrace, Illinois, 60181, United States
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Baylor Scott & White Research Institute
RECRUITINGDallas, Texas, 75246, United States
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Baylor Scott & White The Heart Hospital - Plano
RECRUITINGPlano, Texas, 75093, United States
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Contact Phone: •••-•••-•••• Email: •••••@•••••
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Eastern Health Cardiac Rehabilitation
RECRUITINGSt. John's, Newfoundland and Labrador, A1N3J5, Canada
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Intermountain Medical Center
RECRUITINGMurray, Utah, 84107, United States
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Mayo Clinic
RECRUITINGRochester, Minnesota, 55905, United States
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Mayo Clinic Arizona
RECRUITINGScottsdale, Arizona, 85259, United States
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Mayo Clinic Florida
RECRUITINGJacksonville, Florida, 32224, United States
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Memorial Healthcare System, Office of Human Research
RECRUITINGHollywood, Florida, 33021, United States
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Nemours Cardiac Center
RECRUITINGWilmington, Delaware, 19803, United States
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New Generation of Medical Research
RECRUITINGNaples, Florida, 34116, United States
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The Lundquist Institute
RECRUITINGTorrance, California, 90502, United States
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University of California San Francisco
RECRUITINGSan Francisco, California, 94143, United States
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University of Illinois Hospital & Health Sciences System
RECRUITINGChicago, Illinois, 60608, United States
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VA Palo Alto Healthcare System
RECRUITINGPalo Alto, California, 94304, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact
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physIQ
COMPLETEDChicago, Illinois, 60606, United States