Table 2.

Clinical and immune parameters dependent on training load (training hours per week).

Training load (Th/w)	Stress level (%)	Recurrent infections (%)	WTS	URTI (%)	EBV-specific IgG (U/ml)
<5	42.2 ± 26.1	20	8.74 ± 13.42	30.8	111 ± 75
5 –≤9.9	41.8 ± 25.7	11.4	6.60 ± 9.16	29.9	138 ± 99
10 –≤14.9	47.2 ± 24.3	11.1	7.36 ± 11.52	30.8	146 ± 110
15 –≤19.9	52.9 ± 21.9	13.4	4.92 ± 7.21	22.4	149 ± 113
20 –≤24.9	54.4 ± 23.6	12.8	6.21 ± 9.33	31.3	148 ± 113
≥25.0	61.4 ± 17.9	11.5	13.74 ± 16.81	46.7	127 ± 45
	<0.001**	=0.436	=0.016#	=0.323	=0.364

WTS, WURSS-21 total score; URTI, Upper respiratory tract infection. Data are shown as mean ± SD and percentage values.

^#p < 0.05,

^**p < 0.001.