What term describes the distance between two parallel lines intersecting the midpoint of each heel in the gait cycle?

In the context of gait analysis, the distance between two parallel lines that intersect the midpoint of each heel is referred to as step width. This measurement is important as it provides insight into an individual's stability and balance during movement. Step width can vary based on several factors, including comfort, walking speed, and any potential balance issues the individual may be facing.

Base of support, though relevant to balance, specifically refers to the area beneath an individual that includes their feet and any assistive devices used for support. Stride length refers to the distance covered in a single stride, which encompasses two steps, while gait velocity is a measurement of speed during ambulation. Understanding these definitions is crucial for accurately interpreting gait mechanics and providing appropriate fitting and recommendations for therapeutic shoes.