Fitness Level Timeline
Log VO2 Max to InfluxDB each time it updates and chart your aerobic fitness improvement over a full year.
How much oxygen your body can use during hard exercise. It is one of the best measures of cardiovascular fitness.
VO2 Max improves slowly with training — tracking it month over month shows whether your cardio program is working.
Log VO2 Max to InfluxDB each time it updates and chart your aerobic fitness improvement over a full year.
Send a monthly email showing your VO2 Max change and what fitness category you fall into.
Send a Slack or Telegram message when your VO2 Max crosses a new personal best.
Use your VO2 Max in an n8n formula to calculate your heart rate training zones and update them automatically.
Chart VO2 Max alongside resting heart rate and HRV for a complete cardiovascular health view.
Compare VO2 Max across seasons to see how summer base training affects winter race fitness.
HC Webhook sends a JSON object to your endpoint. The vo2_max field contains an array of readings from the last sync window.
{
"timestamp": "2026-04-15T07:00:00Z",
"vo2_max": [
{ "ml_per_kg_per_min": 48.5, "time": "2026-04-15T07:00:00Z" }
]
}No account required. Your data stays on your device.