Hello Docs, just need your advice on a recurent Ankle Pain. Background: I have low arch since my childhood. I started my transition 10 months ago. I'm able now to run 1 hour (10k) barefoot without calf pain during and after. I first made my transition with 0 drop shoes, but experienced pain on top of ankle malleolus after an interval training (this was a tendinitis or inflammation of tibial post tendon sheath). I had 8 chiro sessions with 4 radial schock waves sessions and recovered in 2 months. I changed my transition strategy and began to run barefoot thinking it was a smoother transition as my feet would tell me when it was time to end. I follow ken bob advice to have a light stride and bend my knees. Unfortunally, the same pain came again 2 months after. It's not a hard pain, but it's disturbing during running and after Questions: Does these TP tendon pain is linked to TP muscle stiffness or due to a weakness of TP muscle (low arch since childhood)? How can istrengthen my TP chain and continue running without shod+orthesis ? What is the best way to pass through this tendinitis and continue barefoot running when we have low arch? Thanks.