
Short Foot (Arch Doming)
Feet


Feet & ankles / Beginner / Isolation (single joint)
Spreads the toes as wide as you can, then presses them together: wakes up the small muscles between the toes.
Why it hurts: The long toe flexors take over, so the small arch muscles you are trying to train stay asleep, and the toes can cramp.
✓ Instead: Keep the toes long and relaxed and slide the ball of the foot toward the heel instead. A smaller movement done right is the goal.
Why it hurts: That is the ankle supinating, not the arch working; the big toe loses contact and the foot learns the wrong pattern for push-off.
✓ Instead: Keep the base of the big toe pressed down the whole time. Check with a finger under it.
How specific this exercise is to each movement.
Illustration: TVIKY.