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Muscle Explorer
Drag to turn · double-tap to reset · pick an exercise or a muscle to see what it works
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100 km/day
— Days
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Facilities
Data: CampWild.org
Upload a GPX — food & water load automatically.
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Data: OpenStreetMap
Open to load sights & landmarks along the route.
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Data: OpenStreetMap · notability via Wikidata/Wikipedia
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Drop your GPX file here

Any cycling or hiking route

Body & fitness — what these numbers mean
VO₂max
Your aerobic engine — the max oxygen (ml/kg/min) you can use at full effort; higher = fitter. Estimated separately for running and cycling from your steady efforts (pace or power vs. how hard your heart works), read at your max HR. Chest-strap HR only.
Resting HR
Your heart rate at complete rest — the live daily value your device measures overnight (synced separately), not the frozen number stored inside an activity file. Lower usually means better aerobic fitness. It's the bottom of your heart-rate reserve.
FTP Threshold Power
The power (watts) you can hold for about an hour — your cycling threshold. Needs a power meter; read from your device (typically ~95% of a 20-min test). Anchors your power zones.
Max HR
The highest your heart can beat. We use the highest HR actually recorded across your chest-strap rides — not “220 − age” — so it's your real ceiling and sets where the zones fall.
Today — daily wellness
HRV Heart-rate variability
The overnight variation between heartbeats (ms) — higher generally means better recovery. It's flagged Balanced, Unbalanced or Low against your own baseline.
Body Battery
An energy gauge, 0–100. It charges with rest and good sleep and drains with stress and activity — the tile shows your most recent level.
Sleep
Your sleep score, 0–100, blending duration, deep/REM stages and restlessness into one number.
Stress
Average all-day stress (0–100) from heart-rate variability. The day is labelled Rest, Balanced or Stressful.

Resting HR, HRV, VO₂max, Body Battery, sleep & stress sync once a day from your device. Set your Max / Rest HR and FTP in for the most accurate numbers.