Table 3. List of parameters considered for IO vs. WCO intra-subject comparison and summarizing indexes.

Global Summarizing Index	Parameters		Descriptions	Specific Summarizing Indexes
GPI Global Postural Index	|ASO|; |AGO|; CA1; CA2; |∆ASIS|; |∆PSIS|	N. 6 parameters describing postural characteristics in the frontal plane		FPI Frontal Postural Index
	TKA, LLA, |PT|	N. 3 parameters describing postural characteristics in the sagittal plane		SPI Sagittal Postural Index
	∆UL	N. 1 parameter describing conditions of load balancing/unbalancing i.e. underfoot loading patterns, in terms of left vs. right sides body weight percentage difference		LBI Load Balancing Index