calculated balance measurement absolute change in tilted plane angle at loss of balance/traction 2014-03-25T17:11:34Z CMO:0002293 JSmith The difference between two conditions or between two points in time (expressed as the result of the subtraction in and of itself without comparison by ratio with another quantity) of the angle of inclination, i.e., the degree of divergence from the horizontal, of a surface at the point when a subject sitting or standing on that surface can no longer maintain its balance or remain in a stable position. The term "absolute change" refers to the subtraction of one value from another, as opposed to a dissimilarity of two values expressed as a ratio or as a percentage. In this context it is not intended to necessarily imply the difference expressed as an absolute value |n|, that is, the numeric value of the difference without regard to its sign. absolute change in the angle of a tilted plane at which balance/traction is lost clinical_measurement_ontology