Table 1. Demographic and training profile data.

Distance group	Short	Medium	Long
Running days/week	5.6 ± 0.9	6 ± 1	6 ± 0
Running miles/week	35 ± 7	40 ± 15	60 ± 0
Age (years)	20 ± 2	25 ± 6	23 ± 3
Gender	7 Male, 2 Female	6 Male, 4 Female	2 Male, 1 Female
Height (m)	1.73 ± 0.05	1.70 ± 0.10	1.73 ± 0.03
Weight (Kg)	54.43 ± 13.15	64.86 ± 7.71	67.13 ± 3.63
Body Mass Index (Kg/m2)	19.4 ± 4.5	23.0 ± 1.8	23.6 ± 0.9
Experience in marathon running (years)	8 ± 3	9 ± 7	10 ± 7