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. 2010 Mar 12;18(5):601–606. doi: 10.1007/s00167-010-1097-1

Table 5.

Correlations among Balance tests and between Balance tests and functional scores

	Postural control Speed-COP	Simple balance		Functional scores
	Postural control Speed-COP	No. of failures	Time to first failures	Functional scores
Postural control
RMS-COP	0.84 (P < 0.001)*	0.77 (P < 0.001)*	−0.65 (P < 0.001)*	No correlation*
Speed-COP		0.74 (P < 0.001)*	−0.66 (P < 0.001)*	No correlation*
Simple balance
No. of failures			−0.83 (P < 0.001)*	No correlation*
Time to first failures				No correlation*

RMS-COP root mean square of the distance of separate COP to the average COP, Speed-COP average speed of COP

* Pearson correlation coefficient (P value)