Table 5 Results of statistical analysis of the agreement between the feetme insoles and motion capture system coupled to force platform measurements. Spatiotemporal parameters.

Parameters	N	Unit	Mean	Std	Bias	Limits of agreement	Pearson’s correlation	MAE	MRAE (%)	ICC (2,1)	ICC high	ICC low	r²	P-value TOST	P-value Levene
HS	11,727	ms	-	-	23	[-23, 70]	1.0	25	0	1.0	1.0	1.0	1.0	< 0.001	0.99
TO	11,727	ms	-	-	22	[-16, 61]	1.0	25	0	1.0	1.0	1.0	1.0	< 0.001	> 0.99
StrideDur	5250	ms	1693.9	731.6	-3	[-36, 31]	1.0	12	1	1.0	1.0	1.0	1.0	< 0.001	0.92
StrideLen	5250	m	1.14	0.10	0.05	[-0.09, 0.18]	0.82	0.06	6	0.73	0.84	0.47	0.67	< 0.001	< 0.001
Velocity	5250	m/s	0.78	0.27	0.03	[-0.07, 0.14]	0.98	0.05	6	0.97	0.99	0.93	0.97	< 0.001	< 0.001
StanceDur	5250	ms	1098.0	505.2	-2	[-59, 54]	1	21	2	1.0	1.0	1.0	1.0	< 0.001	0.12
SwingDur	5250	ms	595.9	258.2	0	[-51, 50]	1	19	4	1.0	1.0	0.99	0.99	< 0.001	0.009
Cadence	5250	bpm	82.2	27.3	0.1	[-1.6, 1.9]	1	0.6	1	1.0	1.0	1.0	1.0	< 0.001	0.91
StepDur	4782	ms	854.7	370.4	-4	[-54, 46]	1	16	2	1.0	1.0	1.0	1.0	< 0.001	0.73
SingleSupDur	4782	ms	603.9	261.5	0	[-68, 69]	0.99	20	4	0.99	0.99	0.99	0.99	< 0.001	0.007
DoubleSupDur	4782	ms	492.4	297.0	1	[-1, 102]	0.99	35	8	0.98	0.98	0.98	0.97	< 0.001	< 0.001

Abbreviations: Dur = duration; HS = heel strike, ICC (2,1) = intraclass correlation coefficient (two-way random effects, absolute agreement, single rater/measurement); Len = length; MAE = mean absolute difference; MRAE = mean relative absolute difference; N = number of measurements for each parameter; r² = coefficient of determination; Std = standard deviation; Sup = support; TO = toe off; TOST = two one-sided t tests.

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