Table 3.

Leukocyte and leukocyte subset counts, immune system and the level of hormones in the blood of cyclists in the annual training cycle; exercise control tests T0—after the transition period, T1—the preparation period, T2—the beginning of the competition period, T3—during the competition period.

Variables/Period	TRAN; T0		PREP; T1		COMP I; T2		COMP II; T3
	X	S	X	S	X	S	X	S
WBC (103/µL)	5.52	1.18	5.12	0.73	6.11	1.79	5.80	0.74
Lymph (103/µL)	2.14	0.62	2.21	0.51	2.24	0.57	2.83 *	0.74
Mono (103/µL)	0.39	0.09	0.29 *	0.11	0.45	0.04	0.37	0.06
Neut (103/µL)	2.80	0.85	2.40	0.36	3.21	1.40	3.00	0.62
Baso (103/µL)	0.06	0.03	0.05	0.03	0.08	0.04	0.10 *	0.04
Eos (103/µL)	0.15	0.06	0.17	0.05	0.15	0.06	0.14	0.07
TNF-α (pg/mL)	18.89	1.73	18.91	2.33	18.51	4.11	15.81	4.46
IL-6 (pg/mL)	0.55	0.34	0.56	0.18	0.46	0.24	0.62	0.53
CRP (mg/dL)	0.11	0.01	0.13	0.02	0.13	0.01	0.15	0.02
IgG (g/L)	9.25	1.89	9.13	1.93	9.07	1.97	8.67	1.71
IgA (g/L)	1.66	0.62	1.70	0.63	1.80	0.74	1.53	0.40
IGF-1 (ng/m)	218.38	61.63	214.84	74.66	188.20	68.92	239.52	36.62
GH (µg/L)	0.55	0.26	0.48	0.35	0.53	0.29	0.65	0.57
Cort (µg/dL)	19.62	5.54	19.46	3.55	21.04	4.69	17.49 #	3.51
Test (ng/mL)	3.90	1.30	4.20	1.68	3.84	1.74	3.89	1.37
T/C	0.21	0.09	0.23	0.11	0.19	0.10	0.24	0.15
IR (µg/mL)	9.61	2.37	9.52	2.16	10.22	2.83	11.49	2.52

Abbreviations: WBC—leukocytes, Lymph—lymphocytes, Mono—monocytes, Neut—neutrophils, Baso—basophils, Eos—eosinophils, IGF-1—insulin-like growth factor-1, GH—growth hormone, Cort—cortisol, Test—testosterone, T/C—testosterone/cortisol ratio, IR—irisin, TNF-alfa—tumor necrosis factor alpha, IL-6—interleukin-6, CRP—C-reactive protein, IgA—immunoglobulin A, IgG—immunoglobulin G. Note: * statistically significant differences against T0, p < 0.05, ^# statistically significant differences against T2, p < 0.01.