Table 1.

General characteristics of the rugby players (n = 60).

Variable	All the Players N = 60	French Players (F) N = 30	Polish Players (P) N = 30
Age (yrs.)	27.6 ± 0.6	28.03 ± 2.55	27.2 ± 3.92
Amateur career (yrs.)	14.7 ± 2.6	16.57 ± 4.31	12.87 ± 3.57
Professional career (yrs.)	5.7 ± 0.3	5.43 ± 3.15	5.9 ± 3.77
Training time (hrs per week)	1.73	1.61	1.83
Number of trainings in the season	94.2	125.2	97.2
Number of training weeks	23.5	31.3	24.5
The protective equipment	N (%)	N (%)	N (%)
Mouth guard	27 (45.0)	14 (46.7)	13 (43.3)
Headgear	8 (13.3)	6 (20.0)	2 (6.6)
Pad on the shoulders	4 (6.7)	3 (10.0)	1 (3.3)
No use	21 (35.0)	8 (26.7)	13 (43.3)