GAIT
Gait
may be described as a translatory progression of the body as a whole, produced
by coordinated, rotatory movements of body segments.
Stages
of gait:
I.
stance
phase: the stance phase begins at the instant that one extremity
contacts the ground and continuous only as long as some portion of the foot is
in contact with the ground.
Heel
strike: the beginning of the stance phase
when the heel contacts the ground.
Foot
flat: It occurs immediately following heel
strike, when sole of the foot contacts the floor.
Mid
stance: the point at which the body passes
directly over the reference extremity.
Heel
off: the point following midstance at which
time the heel of the reference extremity leaves the ground.
Toe
off: the point following heel off when only
the toe of the reference extremity is in contact with the ground.
II.
Swing
phase: the swing phase begins as soon as the toe of one extremity
leaves the ground and ceases just before heel strike or contact of the same
extremity.
Acceleration:
the portion of beginning swing from the moment the toe of the
reference extremity leaves the ground to the point when the reference extremity
is directly under the body.
Midswing:
portion of the swing phase when the reference extremity passes
directly below the body. Midswing extends from the end of acceleration to the
beginning of deceleration.
Deceleration:
the swing portion of the swing phase when the reference
extremity is decelerating in preparation for heel strike.
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