Table 2.

Effects of a classical ballet class on neutrophil numbers, membrane integrity, externalization of phosphatidylserine and mitochondrial depolarization before, immediately after and 18 hours after a ballet class.

Neutrophils	Before	After	18 hours after
Number of Neutrophils (×106)	41.83 ± 8.89	48.5 ± 19.72	26.66 ± 8.38
Cell Membrane Integrity (mean)	63.95 ± 14.21	53.92 ± 15.07	53.70 ± 14.32
Externalization of Phosphatidylserine (mean)	11.14 ± 3.30	9.77 ± 4.31	6.17 ± 2.58
Mitochondrial Depolarization (mean)	114.94 ± 11.31	121.50 ± 11.69	155.23 ± 31.62

The values are presented as the means ± standard errors of 13 dancers. *P < 0.05 for comparison to pre-class conditions.