Table 2.

Means ± standard deviations of the critical speed (CS) and distance that can be run above CS (d′) and their corresponding standard error of estimate (SEE, in parenthesis) obtained from statistically appropriate [$t(s)$ using weighted least squares (WLS) and $d(s)$ using WLS] and statistically inappropriate [$s(t)$ and $d(t)$ both using LS] fitting procedures together with the combined SEE (%SEE), i.e., the sum of SEE of CS and d′ transformed to percent units, as well as the residual standard errors (RSE)

Statistically appropriate	Fitting procedure	CS (m/s)	d′ (m)	%SEE	RSE
Yes	$t(s)$ using WLS	4.39 ± 0.41 (0.03 ± 0.01)	226.0 ± 57.0 (20.3 ± 8.0)	9.8 ± 3.4	37.0 ± 14.5
	$d(s)$ using WLS	4.39 ± 0.40 (0.03 ± 0.01)	222.3 ± 56.0 (19.8 ± 7.6)	9.7 ± 3.4	201.5 ± 79.3
No	$s(t)$ using LS	4.59 ± 0.43 (0.07 ± 0.02)	167.3 ± 46.2 (11.2 ± 4.3)	8.3 ± 2.6	0.11 ± 0.04
	$d(t)$ using LS	4.42 ± 0.39 (0.04 ± 0.02)	210.2 ± 50.5 (19.7 ± 7.7)	10.5 ± 3.9	34.4 ± 11.9