Postural Stability Evaluation of Patients Undergoing Vestibular Schwannoma Microsurgery Employing the Inertial Measurement Unit

Table 7

Spearman’s rank correlation coefficient between the volume of polyhedron and the area of the confidence ellipse of CoP excursions.

	Presurgery		Postsurgery
	TVPA	TVPD	TVPA	TVPD
EO FiS	0.65	0.57	0.70	0.87
EO FoS	0.63	0.85	0.85	0.87
EC FiS	0.77	0.80	0.62	0.75
EC FoS	0.68	0.90	0.82	0.90

TVPA: total volume of the polyhedron of accelerations; TVPD: total volume of the polyhedron of angles; FiS: firm surface; FoS: foam surface; EO: eyes open; EC: eyes closed; moderate correlation; strong or very strong correlation.