If the mechanical ankle axis is below the anatomical ankle axis, where are the pressures on the leg during plantar flexion?

When the mechanical ankle axis is situated below the anatomical ankle axis, it affects the distribution of pressures on the leg during plantar flexion. In this position, as the foot moves into plantar flexion, the tibia exerts a forward force due to the biomechanical relationship between the tibia and the foot.

This results in the anterior aspect of the foot and leg experiencing increased pressure, particularly toward the distal portion. The mechanical alignment causes the center of pressure to shift forward, leading to anterior-distal pressures during expressions of plantar flexion.

Therefore, the understanding of the interaction between the mechanical and anatomical axes, along with the resulting force dynamics during movement, is critical to properly assessing the loading patterns on the leg in this context.