Diagram of Foot Arches (IMAGE) Okinawa Institute of Science and Technology (OIST) Graduate University. Caption. The longitudinal arch has been well studied when it comes to foot stiffness, ...

Plantar flexion is a term that describes the motion of pointing the foot downwards. This is a normal part of motion for many people, but certain conditions and injuries can affect plantar flexion ...

Feet “splay,” or widen, as you step and shoes that are too narrow can result in problems like ingrown toenails, calluses, blisters, subungual (under the nail) bleeding, or just general discomfort.