Warm up: Walking at moderate speed, joint mobility
exercises for the arms, hips and legs.
Exercise 1:8WbWdY_d]%h[XWbWdY_d]WdZfeijkhWb
stability exercise with visual feedback. Participants
maintained their center of gravity (projected on a
computer screen) as close as possible to the center of
the target. The exercise consisted of three series. In
the first, the legs were semi-flexed at an angle of about
45 degrees at the knee joint; the feet were parallel and
shoulder width apart. In the second series, the right
leg was placed forward, maintaining knee flexion in
both legs and in the third series, the left leg was placed
forward. Participants could use their arms to rebalance
or for safety if necessary. Each series of the exercise
lasted 20 seconds.
Exercise 2:8WbWdY_d]%h[XWbWdY_d]WdZfeijkhWb
stability exercise without visual feedback. The
participant repeated the three series of Exercise 1, but
with no visual feedback. Participants were positioned
so that they could only see a white wall.
Exercise 3: Weight shift exercise. Participants had
to displace their center of gravity above and below to
the limits established by the Biodex Balance System.
Six displacements outside the limits were required
to complete the exercise, with the centre of gravity
returning to the centre of the target between each
displacement. Participants had visual feedback from
the computer screen and they also were allowed to
use their arms to rebalance or for safety if necessary.
Participants performed two sets. In the first set, the
right leg was placed forward and the target was
inclined 45 degrees clockwise with respect to the
vertical. In the second set, the left leg was placed
forward and the target was rotated 45 degrees
anticlockwise from vertical.