Biometrics
19 Biometrics. 3 Categories.
For most platforms, biometrics are just numbers on a dashboard. For WellPath, they're the physical signals that validate whether your lifestyle changes are translating into real physiological improvement.
Beyond the scale
Body composition goes deeper than weight. DEXA scans reveal visceral fat distribution, appendicular muscle mass, and bone density — the metrics that actually predict metabolic risk and sarcopenia.
Wearable + clinical
Some biometrics stream from your Apple Watch. Others require clinical measurement. WellPath integrates both — HealthKit sync for daily vitals, clinician entry for body composition and grip strength.
Goals, not benchmarks
Like biomarkers, biometric values feed the recommendation engine. A declining VO2 max or rising resting heart rate triggers targeted behavioral goals — not just a flag on a chart.
Validated over time
Biometrics close the feedback loop. When your clinician assigns a strength training goal, grip strength and ASMI confirm whether it's working. When sleep goals are set, HRV and resting heart rate show the physiological response.
Explore by Category
19 biometrics across 3 categories. Expand any metric to learn what it measures and why it matters for longevity.
Body Composition
Body composition measures what your weight is made of — fat, muscle, bone, and water. Standard scales tell you almost nothing useful. A DEXA scan reveals visceral fat surrounding your organs, appendicular muscle mass in your limbs, bone mineral density, and body fat distribution — each with independent health implications.
Vitals
Vital signs are real-time windows into cardiovascular function, autonomic balance, and metabolic regulation. Most are captured automatically by wearables and synced through HealthKit — giving WellPath continuous physiological data without any manual entry.
Fitness Metrics
Fitness metrics quantify your body’s functional capacity — how efficiently it uses oxygen, how well your nervous system recovers, and how much force your muscles can produce. These are among the strongest predictors of longevity in the clinical literature.
Measurement Methods
How Biometrics Are Measured
Three sources feed biometric data into WellPath — each capturing metrics the others cannot.
DEXA Scan
The gold standard for body composition. A low-dose X-ray scan that provides visceral fat area, regional fat distribution, appendicular skeletal muscle mass, and bone mineral density — none of which can be measured by a scale, bioimpedance device, or wearable. Recommended annually or at the start of each cycle.
Wearables & HealthKit
Apple Watch and compatible devices continuously capture heart rate, HRV, resting heart rate, walking heart rate, SpO2, respiratory rate, and VO2 max estimates. WellPath syncs these automatically through HealthKit — no manual entry required.
Clinical Tools
Blood pressure cuffs, grip dynamometers, and body composition analyzers (InBody, bioimpedance) provide measurements that wearables can't. Your clinician enters these during visits. For practices without a DEXA, bioimpedance devices offer a reasonable body composition alternative — though they cannot measure visceral fat or ASMI directly.