Injury Prevention : Runproof

Measure your weak links, then get the right 5-minute session before and after every run. Close your asymmetry gap and keep niggles from ending your block.

Run-proof your body.

Most running injuries don't come from bad luck — they come from a weak link you can't see. Runproof measures it, then gives you the right session for every run so a niggle never ends your training block.

MEASURE YOUR WEAK LINKS A guided single-leg calf-raise test uses your phone's motion sensors to count each rep and map your left/right balance. In about two minutes you get a durability score for each sector, your weakest link, and any side-to-side gap over 10%.

THE RIGHT SESSION FOR EVERY RUN • Before a run: a 5-minute activation to prime your weak links. • After a run: a recovery session, auto-suggested when Apple Health sees your run. • Rest days: a prehab session to close your asymmetry gap.

WATCH YOURSELF GET STRONGER Every session ticks your weakest sector's durability bar toward a cited reference band. Re-test every few weeks for the reveal: your gains, your gap closing, your score climbing above your own baseline.

BUILT FOR RUNNERS • Sector-by-sector durability scores • Left/right asymmetry tracking • Declare-a-niggle shortcut to a targeted protocol • Quiet training-load context from Apple Health • Contextual reminders that deliver value, not nagging

Honest by design: at launch only your calves are measured (other sectors are self-reported context), and the calf test is a guided count — not a medical or diagnostic test. Runproof is a strength and prevention coach, not a treatment for injury.

Runproof Pro unlocks the full program, re-tests, and history. Subscriptions auto-renew; manage or cancel anytime in Settings.

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