Changes in breaststroke swimming performances in national and international athletes competing between 1994 and 2011 –a comparison with freestyle swimming performances

Table 3 Comparison of linear and non-linear regression analysis of changes in swimming speed for female and male breast stroke swimmers at international level across years to determine which model is the best

	Kind of regression	Sum of Squares	DOF	AICC	Best regression AIC-Test	Best regression F-Test	Delta	Probability	Likelihood
50 m breaststroke	polynomial	0.00042	1	−9.35	linear	linear	35.83	1.65 e^-08	100%
male FINA finalists	linear	0.00190	4	−45.19	linear	linear	35.83	1.65 e^-08	100%
100 m breaststroke	polynomial	0.00035	2	−40.28	linear	linear	23.83	6.66 e^-06	99.99%
male FINA finalists	linear	0.00180	6	−64.12	linear	linear	23.83	6.66 e^-06	99.99%
200 m breaststroke	polynomial	0.00014	2	−47.16	linear	linear	23.19	9.18 e^-06	99.99%
male FINA finalists	linear	0.00086	6	−70.35	linear	linear	23.19	9.18 e^-06	99.99%
50 m breaststroke	polynomial	0.00027	0	−49.89	linear	undetermined	1.51	0.31	68.04%
female FINA finalists	linear	0.00069	4	−51.41	linear	undetermined	1.51	0.31	68.04%
100 m breaststroke	polynomial	0.00034	2	−40.31	linear	linear	30.66	2.19 e^-07	100%
female FINA finalists	linear	0.00080	6	−70.97	linear	linear	30.66	2.19 e^-07	100%
200 m breaststroke	polynomial	8.76 e^-05	2	−51.37	linear	linear	18.04	0.00012	99.98%
female FINA finalists	linear	0.00097	6	−69.41	linear	linear	18.04	0.00012	99.98%

ISSN: 2052-1847