Foot Motion Characteristics
What is your foot type? Do you overpronate? What kind of arch do you have?
The Running Lab Footbalance analysis is designed to answer these questions and more. We will help you learn more about how your feet affect your overall well-being. During the foot analysis we take into consideration the gait cycle, foot strike, foot motion and arch height to suggest the appropriate shoe for you.
The gait cycle consists of two movement periods: swing and stance. The swing period is the movement of one leg while its foot is in the air. The stance period is the period of movement of the leg and foot while the foot is in contact with the ground. The stance period may be divided into the following three phases:
Impact (heel-strike) Phase:
Support (mid-stance) Phase:
Propulsion (toe-off) Phase:
Foot-print / Foot-strike
A foot-strike characterizes the movement of the foot as it goes through the three phases of stance: impact, support and propulsion.
Ideally a foot should contact the ground and roll slightly outward before rolling slightly inward. Before the foot leaves the ground, it should roll slightly outward again. Collectively, these slight movements allow the foot to function correctly in absorbing or dissipating ground forces and are said to result in a neutral foot-strike. Too much or too little movement usually leads to problems. See below to learn about the three common foot-strikes.
Although the relationship does not always hold true, there is a tendency for foot motion to be associated with arch height. Generally, the higher the arch the less the foot will pronate and the lower the arch the more the foot will pronate. Either stand on a hard surface and view the medial side of your foot in a mirror or take a picture of your foot and compare it to the images below.
Arch height works best as an indicator of foot motion for people at the extremes. However, there are people with high arches that over-pronate and people with no arches that supinate.
Sizing may vary between shoe models, even from the same manufacture. The variation is due to the construction process of attaching the upper to the midsole.
A proper fitting shoe should be snug in the heel and fitted in the midfoot to keep the foot in place. Feet expand during a run and a proper fitting shoe should have room around the toes to allow for this expansion. It is better for a shoe to be too big than too small. Always fit the larger foot.