Version 1.10 Page 17 of 203
1.5.3 GYKO FOR POSTURE ANALYSIS
Postural analysis is frequently used to evaluate the stability and balance of a quiet standing subject.
Gyko, placed on the trunk or at the level of the centre of mass, provides important information
about the body sway of the subject and through appropriate protocols it enables evaluating the
relative contribution made by the various components of the postural system (visual, proprioceptive
of different origin, labyrinthine, etc.).
Gyko lets you simply and quickly obtain the best known indexes concerning the projection of the
body's centre of gravity on the ground.
The main indexes returned are:
Projection length and area.
Projection travel speed.
Sway frequency
In this case the graphic is a "projection" showing all the movements (the red dot indicates the
position at the end of the test) and an overlay of the ellipse already seen in Sect.
1.5.1.1
. To the right
there are two graphs, one for the antero-posterior movements and the other for the medio-lateral
movements with the time being the abscissa and the movement in mm the ordinate.
The test can be done with a custom "Static Test" (Sect. 5.1.6) or with the default Body Sway protocol
(Sect. 6.8) For all the details shown in the Summary Data please see Sect. 5.1.6
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