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Pre-swing Phase: This phase corresponds to the loading response phase of the opposite foot. The center of gravity moves to the opposite side. Swing Phase: Swing phase is that part of the gait cycle during which the reference foot is not in contact with the ground and swings in the air. It constitutes about 40% of gait cycle.
In a healthy individual walking at a normal walking speed, stance phase makes up approximately 60% of one gait cycle and swing makes up the remaining 40%. [3] The lower limbs are only in contact with the ground during the stance phase, which is typically subdivided into 5 events: heel contact, foot flat, mid-stance, heel off, and toe off.
A mature walking pattern is characterized by the gait cycle being approximately 60% stance phase, 40% swing phase. [18] Initiation of gait is a voluntary process that involves a preparatory postural adjustment where the center of mass is moved forward and laterally prior to unweighting one leg. The center of mass is only within a person's base ...
Forelimb-hindlimb phase is the temporal relationship between the limb pairs. If the same-side forelimbs and hindlimbs initiate stance phase at the same time, the phase is 0 (or 100%). If the same-side forelimb contacts the ground half of the cycle later than the hindlimb, the phase is 50%.
Pronation is a normal, desirable, and necessary component of the gait cycle. [4] Pronation is the first half of the stance phase, whereas supination starts the propulsive phase as the heel begins to lift off the ground. [5] An illustration of pronation and supination of the foot from an anatomy textbook
Pathological gait may reflect compensations for underlying pathologies, or be responsible for causation of symptoms in itself. Cerebral palsy and stroke patients are commonly seen in gait labs. The study of gait allows diagnoses and intervention strategies to be made, as well as permitting future developments in rehabilitation engineering ...
The “aerial phase” is the period between contralateral foot contacts when the body is airborne. For one specific leg, the time of toe-off until subsequent heel contact is known as the “swing-phase” for that leg. One complete gait cycle involves a stance and swing phase for each leg. [3]
This gait starts at one of the hind legs, then propagates forward to the mid and front legs on the same side before starting at the hind leg of the contralateral side. [65] The wave gait is often used at slow walking speeds and is the most stable, since five legs are always in contact with the ground at a time. [66]