What this means
This study will measure fitness and take blood samples from adults on the same day. It will check whether blood markers can predict fitness, but it has not reported any results yet.
Plain-English summary written by an AI model from the registry listing.
- Status
- Recruiting
- Who can join
- Ages 18 and over
- Where
- 1 site, including Connecticut
The science
- Registered title
- Molecular Indicators of Systematic Fitness
- Trial ID
- NCT07393841 ↗
- Phase
- Not applicable
- Study type
- observational
- Conditions
- Healthy Adult, Fitness Testing, Athlete, Aging, Exercise Physiology, Human Performance
- What is tested
- There is no intervention.
- Sponsor
- VO Health, Inc.
- Ages
- 18 Years to no maximum
- Dates
- First posted Feb 6, 2026 · updated Feb 6, 2026
Registry summary
The goal of this study is to characterize associations between cardiorespiratory fitness, as measured by VO₂max/VO₂peak, and blood-based molecular measurements in adults. This is an observational study where research staff measures VO₂max/VO₂peak and collects fasted, resting blood samples on the same day. The main questions it aims to answer are:
- Can a multi-analyte blood panel accurately predict directly measured VO₂max/VO₂peak?
- How do these blood-based features vary across age, sex, and self-reported or documented physical activity profiles?
- Are the predictor analytes able to capture changes in VO₂max/VO₂peak caused by a self-directed intervention (e.g., training for a marathon)?
- What is the analytic reliability of the predictor biomarkers?
Sites (1)
- VO Health, Inc., New Haven, Connecticut, United States