Table 1.

Effects of classical ballet class on the serum concentrations of IL-1β, TNF-α, IL-6, IL-10, IL-2, IL-4 and C3 were quantified in the plasma, and serum concentrations of IgA and IgG were quantified in the serum of dancers before, immediately after and 18 hours after a ballet class.

	Before	After	18 hours after
IL-1β (ng/mL)	0.29 ± 0.08	0.25 ± 0.06	0.23 ± 0.06
TNF-α (ng/mL)	0.16 ± 0.04	0.15 ± 0.04	0.12 ± 0.01
IL-6 (ng/mL)	0.11 ± 0.03	0.13 ± 0.03	0.08 ± 0.02
IL-10 (ng/mL)	0.12 ± 0.01	0.12 ± 0.01	0.13 ± 0.01
IL-2 (ng/mL)	0.04 ± 0.005	0.04 ± 0.005	0.02 ± 0.02
IL-4 (ng/mL)	88.00 ± 1.00	86.85 ± 1.93	81.74 ± 0.74*
IgA (mg/dL)	198 ± 13	185 ± 17	196 ± 13
IgG (mg/dL)	27 ± 3	29 ± 3	33 ± 3
C3 (mg/dL)	219 ± 0.87	218 ± 2.00	219 ± 2.55

The values are presented as the means ± standard errors of 13 dancers. mg/dL: milligrams per deciliter. *P < 0.05 for comparison to pre-class conditions.