What defines a cycle of gait?

A cycle of gait is defined by the sequence of movements that occur during walking, which begins with the heel strike on one limb and concludes when that same heel strikes the ground again after completing a stride. This cycle encompasses both the stance and swing phases of the gait pattern of one side, effectively representing the movements involved in propelling the body forward.

The correct choice accurately captures this definition by identifying the heel strike on one limb and following it with the subsequent heel strike on the same side, thus highlighting the complete gait cycle of that limb. During this time, the opposing limb will go through its own phases, but the focus remains on one side to illustrate the full cycle for that leg.

This definition of a gait cycle is crucial in understanding the mechanics of walking, which can impact various aspects of physical rehabilitation, the design of prosthetic devices, and the assessment of mobility in individuals. Understanding how the gait cycle is defined helps practitioners assess gait patterns and identify abnormalities or dysfunctions more effectively.