In most fitness apps, if you tell it you have bad knees, it hides knee exercises. That's a blunt tool — you still need leg work, you just need the right leg work.
Mighty Nimble does the opposite: it uses your conditions as design inputs. The routine is built around them, not in spite of them.
How to describe a condition well
Be specific. The AI works better with details than generic labels.
❌ "Shoulder pain"
✅ "Right shoulder impingement, pain on overhead pressing; fine with rows and pull-ups"
Mention what works. Tell the AI what you can do — it'll lean into those patterns.
"My lower back is tight but I'm fine with planks and deadbugs; flexion hurts."
Distinguish acute from chronic. A tweaked muscle from yesterday is different from a long-standing limitation.
"Tweaked my hamstring yesterday — something gentle, avoid direct loading"
"Chronic right knee issue — prefer hinge patterns over squats"
Where to put this
Your base profile — for permanent or ongoing conditions, put them in the health conditions field. They apply to every routine.
In-depth details (free-form) — for nuance that doesn't fit check-boxes: "Pain on deep squats below parallel, fine at 90 degrees."
In the prompt — for acute or temporary situations: "Sore from yesterday's leg day, need active recovery."
A dedicated folder — if you're working through something for a while, make a folder with the condition baked into its overrides.
What Mighty Nimble draws on
The AI has been shaped by knowledge from physios, sports medicine specialists, and rehab contexts — not just generic exercise libraries. That's why "design around the condition" works: it has a sense of how to adapt, not just what to avoid.
When to see a professional
Mighty Nimble isn't a replacement for a physio, doctor, or coach — especially for pain that's new, severe, or worsening. Use it for informed adaptation, not diagnosis or treatment.