Generally, there are three categories when describing footstrike type: heel , midfoot , and forefoot strike. It refers to the percentage of type during walking or running. The most common symptom of footdrop gait is associated with the affected limb landing flat-foot or toe-first at initial contact. Insole X is a portable gait analysis system for patients suffering from gait disorders that affect gait and balance functions. The smart insole can help your gait analyzed wherever and whenever you go with detailed gait data.