Table 2.

FFST testing time (s) for the different testing moments with reliability levels.

	First measurement of FFST				Second measurement of FFST				ICC	ICC 95% CI
Testing moments compared	N	Mean	SD	Range	N	Mean	SD	Range		Lower	Upper
One-week test-retest moment	19	828	89	676-977	19	754	95	600-919	0.56	-0.43	0.83
Three-week test-retest moment	19	754	95	600-919	19	756	79	539-896	0.79	0.53	0.91