Table 2 The level of static balance of Special Forces Operators according to the different conditions assessed.

Protocol		Barefoot			Shoes			Equipment			p\(_{fr}\)	e.s.
Parameter		\(\bar{x}\) ± Sd	p\(_{w}\)	e.s.	\(\bar{x}\) ± Sd	p\(_{w}\)	e.s.	\(\bar{x}\) ± Sd	p\(_{w}\)	e.s.	p\(_{fr}\)	e.s.
Ellipse [mm\(^2\)]	EO	136.68±95.35	0.2174	-0.20	178.11±108.17	0.1090	-0.26	200.92±140.35	0.1496	-0.24	0.0091\(^*\)	0.13
Ellipse [mm\(^2\)]	EC	118.35±69.46	0.2174	-0.20	161.41±100.76	0.1090	-0.26	172.08±120.46	0.1496	-0.24	0.0188\(^*\)	0.11
Path [mm]	EO	182.57±70.81	\(<0.0001 ^*\)	0.71	209.70±83.80	\(<0.0001^*\)	0.82	238.43±93.72	\(<0.0001^*\)	0.79	\(<0.0001^*\)	0.30
Path [mm]	EC	243.43±112.36	\(<0.0001 ^*\)	0.71	308.38±140.15	\(<0.0001^*\)	0.82	332.70±133.21	\(<0.0001^*\)	0.79	\(<0.0001^*\)	0.38
Velocity [mm/s]	EO	6.16±2.49	\(<0.0001 ^*\)	0.69	7.03 ± 2.77	\(<0.0001 ^*\)	0.81	7.89±3.13	\(<0.0001 ^*\)	0.77	\(<0.0001 ^*\)	0.30
Velocity [mm/s]	EC	8.16±3.79	\(<0.0001 ^*\)	0.69	10.22±4.69	\(<0.0001 ^*\)	0.81	11.03±4.38	\(<0.0001 ^*\)	0.77	\(<0.0001 ^*\)	0.38

\(\bar{x}\) – mean; Sd – standard deviation; EO – eyes open; EC – eyes closed; p\(_{w}\) – probability of Wilcoxon test; p\(_{fr}\) – probability of Friedman test; e.s. – effect size; Ellipse – COP 95% confidence ellipse area; Path – length of the COP path; Velocity – average COP velocity; \(^*\) – statistical significance.

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