Table 4.

Factors associated with biological markers of oxidative stress in swimmers surveyed twice

	Erythrocyte Cu++/Zn++ SOD (U/g Hb)		Erythrocyte GSH-Px (U/g Hb)		Plasma GSH-Px (U/L)		Total antioxidant concentration (mmol/L)
	Coefficient (SD)	p Value	Coefficient (SD)	p Value	Coefficient (SD)	p Value	Coefficient (SD)	p Value
Exposure: W24 vs. W0	16.1 (5.28)	0.01	−15.3 (1.37)	0.002	246 (52.7)	0.002	−0.038 (0.021)	0.09
Training: D4 vs. D1	19.3 (3.49)	0.0001	−0.11 (1.17)	0.9	71.0 (27.3)	0.3	−0.014 (0.021)	0.5
Group: 2 vs. 1	−25.8 (4.53)	< 0.0001	−8.29 (4.19)	0.9	−4.44 (25.7)	0.9	−0.003 (0.032)	0.9
Hours of swimming between D1 and D4			0.24 (0.33)	0.15
Hours of swimming between D1 and D4 * group 2			−1.47 (0.58)	0.06
Exposure * group 2			15.5 (2.38)	0.0009
Age					14.2 (4.42)	0.01
Exposure * age					−6.99 (2.69)	0.02
Exposure * D4					−94.0 (16.2)	< 0.0001