Table 2.

Effects of surface, running speed, and foot strike angle on initial contact (IC) and terminal contact (TC) estimation across methods. Numbers represent coefficients for the intercept of surface (added to model estimates for the floor condition but not the track condition) and the slopes of running speed and foot strike angle. * Significant (p ≤ 0.05) effects are highlighted in blue.

	Initial Contact (IC)			Terminal Contact (TC)
Method	Surface	Speed	Foot Strike	Surface	Speed	Foot Strike
Mizrahi	−5.02	0.71	−15.91	n/a
Mercer	−5.07	2.59	−11.99	−0.07	34.17 *	−47.56
Purcell	0.74	−0.14	19.66	2.46	4.00 *	4.02
Aminian/O’Donovan	2.81	−31.55	19.26	−15.10	11.29	−1.83
Aminian/O’Donovan modified	11.40	−5.58	−0.12	−1.26	−5.95 *	10.76
Greene/McGrath	2.22	−5.53	23.35	1.12	1.18	−16.43
Greene/McGrath modified	−1.91	−2.70	9.89	3.79	0.69	−25.87
Sinclair	−7.24	0.18	−44.17	−9.19	−15.65	43.08
Whelan	−14.22	−13.89 *	74.18 *	n/a
Norris	−23.89	−36.41	148.44	n/a
Schmidt	−11.17	209.61 *	49.38	−2.46	227.50 *	18.75
Aubol	−26.90	−3.94	34.33	n/a
Fadillioglu	0.20	1.44	−2.13	1.27	−4.44	37.21
Bach	19.63	9.71	32.00	−7.44	−3.37	−44.60
Bach modified	−1.07	36.60 *	68.71	1.75	54.45 *	75.07
Auvinet	−3.08	0.01	0.13	0.15	6.86 *	−19.55
Lee	−1.03	−15.11 *	13.29	0.74	−12.46 *	4.05
Wixted	−2.99	−13.39 *	10.53	−1.52	2.37	0.20
Bergamini	−9.77	−19.31 *	12.63	−9.95	2.87	−34.54
Benson	0.11	−25.14 *	−6.34	0.46	4.60 *	−7.39
Reenalda	−0.13	−5.93 *	−9.39	n/a