Effects of the standardized training session on the plasma activity of CK and LDH, observed in soccer players in the U-15 category (n = 11) at different moments of the competitive season.

Table 2: Effects of the standardized training session on the plasma activity of CK and LDH, observed in soccer players in the U-15 category (n = 11) at different moments of the competitive season.

Competitive Season
	Initial	Intermediate	Final
CK (U/A)
Pre-training	188.6 ± 86.78	194.15 ± 107.46	299.5 ± 143.38
Post-training^*	267.02 ± 87.5^*	363.09 ± 226.2^*	324.3 ± 181.45
Δ of alteration	78.41	168.94	25.24
LDH (U/A)
Pre-training	137.67 ± 70.34	193.65 ± 129.76	206.51 ± 53.51
Post-training	178.52 ± 129.83	209.53 ± 52.33	238.28 ± 75.28
Δ of alteration	40.84	15.88	31.77

*Significant difference in relation to Pre and Post STS (p ≤ 0.05).