I thought it would be best to move this discussion between Simon, Eric and I to a more appropriately titled thread. Quote: Originally Posted by Simon What should also be borne in mind here is that a significant amount of frontal plane motion occurs between the tibia and the talus; it’s not all about the subtalar joint when it comes to supra-malleolar footwear. I’d also say that the reason walking boots traditionally had a high toe spring was because they were high top boots, laced in tight around the ankle and limited sagittal plane motion of the ankle- hence the need for the rocker action in the rigid soles of these boots.
More here:
Normal and Abnormal Talo-Tibial Kinematics and Kinetics
