This document discusses gait analysis techniques. It describes the gait cycle in detail, including the stance phase (initial contact, loading response, midstance, terminal stance, preswing) and swing phase (initial swing, midswing, terminal swing). It also covers qualitative gait observation factors like center of gravity, limb symmetry, and cadence. Walking and running gaits are compared, noting running includes a flight phase with no foot contact. Compensatory gait deviations resulting from injuries or conditions are also mentioned.