Show HN: A deterministic rehab engine for BJJ injuries

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BJJ Rehab — Injury assessment and rehab protocols for BJJ athletes

Real physiotherapy logic, not an AI chatbot<br>Figure out what's actually wrong with your ligamentjointmuscletendonligamentbody in 5 minutes.<br>A clinical-grade self-assessment that narrows your injury down the way a physio would. Then gives you a rehab plan you can actually follow on the mats.<br>Where does it hurt?<br>Tap the area that hurts most.<br>Neck<br>Shoulder<br>Elbow<br>Wrist<br>Fingers<br>Ribs / sides<br>Mid-back<br>Lower back<br>Hip / groin<br>Knee<br>Ankle / foot

Just your email · ~5 minutes · Free

2.8kassessments·4.3/5 avg rating

Knee · Week 3 · loading under controlShoulder · Week 6 · back to sport-specific drillingLower back · Week 2 · cleared pain-dominant phaseNeck · Week 8 · back on the matsElbow · Week 4 · loading under controlHip · Week 5 · back to sport-specific drillingKnee · Week 3 · loading under controlShoulder · Week 6 · back to sport-specific drillingLower back · Week 2 · cleared pain-dominant phaseNeck · Week 8 · back on the matsElbow · Week 4 · loading under controlHip · Week 5 · back to sport-specific drilling

Prefer the app?<br>Download on theApp Store<br>How it works

How it works<br>Four steps. No guessing.<br>Tell us where it hurts<br>Short conversation: where, when, and how it started. Takes about a minute.

Run guided self-tests<br>We walk you through the same orthopedic tests a physio uses to rule conditions in or out.

Get a likely diagnosis<br>A narrowed shortlist with what fits your symptoms and what doesn’t. Not a vague “could be anything”.

Follow a BJJ-specific protocol<br>Rehab work you can do between or alongside training. Not “stop rolling for 6 weeks”.

Why this isn't another AI chatbot<br>The diagnosis isn't guessed by an LLM.<br>Clinical decision tree<br>The logic that narrows your injury is a deterministic tree built from years of PT practice, not a model making things up.

BJJ-specific, not generic<br>Knee-on-belly, stack passes, triangles, heel hooks. We know how you got hurt because we train.

AI only runs the conversation<br>It translates your words into clinical inputs. The assessment itself is rule-based and reproducible.

Built to hand off to a real PT<br>If something needs hands-on care, we say so, and the report is something you can bring to an appointment.

Injury & technique guides<br>Already know where it hurts? Start here.<br>By technique<br>Heel hook knee injury<br>Kimura shoulder injury<br>Armbar elbow hyperextension<br>Guillotine choke neck strain<br>Ankle lock injury<br>Americana shoulder injury<br>Browse all techniques →<br>By injury<br>Neck strain<br>Intercostal (rib) strain<br>Rib fracture<br>ACL tear<br>Meniscus tear<br>Elbow hyperextension<br>Browse all injuries →

Stop wondering. Start fixing it.<br>Five minutes now beats six weeks of guesswork. Your first session is free.<br>Start my free assessment →Not a substitute for in-person medical care. See our terms for the full disclaimer.

Athletes & creators<br>Train competitively or post BJJ content?<br>Partner with us to support the community and earn when athletes you refer sign up and stick with their rehab plan.<br>Become a sponsored athlete →

week back injury rehab specific assessment

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