Table 2.

Biochemical data of the study population (22 runners).

Parameter	PRE RUN (baseline values) (mean ± SD)	POST RUN values (mean ± SD)	p value
Age (yrs)	45.4 ± 11
Fe (mcg/dl)	15.15 ± 5.6	21.7 ± 6.39	p < 0.05
Mg (mg/dl)	0.84 ± 0.04	0.72 ± 0.05	p < 0.005
P (mg/dl)	1.12 ± 0.2	1 ± 0.2	NS
Ca (mg/dl)	2.4 ± 0.08	2.48 ± 0.11	NS
Na (mEq/l)	141 ± 0.87	144 ± 1.68	p < 0.001
K (mEq/l)	4.5 ± 0.27	4.84 ± 0.33	p < 0.05
Cl (mEq/l)	103 ± 1.13	103.8 ± 2.48	NS
Ferritin (ng/ml)	173 ± 170	198.7 ± 194	p < 0.05
CTx (ng/ml)	−0.3 ± 0.128	0.36 ± 0.09	NS
25-OH vitamin D (ng/ml)	52.7 ± 10.18	—	—