Performing the: A Step-by-Step Tutorial Posterior tibial
Slowly lift one foot off the ground, keeping your heel on the floor while flexing your toes upwards towards your shin. This will engage your tibialis posterior muscle.
Hold this position for a few seconds, feeling the stretch in your calf and the engagement in your shin.
Slowly lower your foot back to the ground, maintaining control and not allowing your foot to slam down.
Repeat these steps for the desired number of reps, then switch to the other foot and repeat the process.