Tibialis posterior holds the arch
This one tendon supports the arch through every step. When it fails, the arch flattens and the heel drifts outward.
MoPro
Trainer's Eye
The two tendons that hold the ankle in line — tibialis posterior inside, peroneals outside.
This one tendon supports the arch through every step. When it fails, the arch flattens and the heel drifts outward.
The peroneal muscles on the outside of the shin pull the foot outward and are the first defence against rolling the ankle.
After one foot hurts, the other quietly takes over and gets its own problems. Train both.
Three couplets · two rounds · twelve minutes · feet that carry you
Heel planted; roll the foot outward to tap the outside edge, then return.
Easier seated · Harder slower and further
Towel round the foot, pulled inward; push the foot outward against it, return in three.
Easier less tension · Harder more tension
Roll the foot inward to tap the inside edge, keeping the heel down.
Easier seated · Harder slower and further
Towel pulled outward; turn the sole inward against it — this is tibialis posterior.
Easier less tension · Harder more tension
On one foot; shift the weight between big toe, little toe and heel without lifting any.
Easier two feet · Harder eyes closed
Ball or towel squeezed between the heels; rise onto the toes keeping the squeeze.
Easier no squeeze · Harder one leg
Each couplet: 60 s scored → the loading set → 10 s to move on. Done at 12:00.