Table 1.

Demographic data, playing positions, and hamstring strain injury severity of included football players (n = 44).

	Self-reported hamstring strain injury in preceding 12 months
	No (n = 33)	Yes (n = 11)
Demography
Age, years (SD)	23.2 (3.7)	25.6 (4.4)
Body mass, kg (SD)	77.5 (9.6)	79.6 (9.6)
Height, cm (SD)	181.6 (5.5)	181.2 (6.5)
Playing position
Central defenders, no. (%)	6 (18.2)	1 (9.1)
Full-backs, no. (%)	4 (12.1)	3 (27.3)
Central midfielders, no. (%)	12 (36.4)	1 (9.1)
Wide midfielders, no. (%)	4 (12.1)	3 (27.3)
Attackers, no. (%)	7 (21.2)	3 (27.3)
Hamstring strain injury severity*
Mild ( < 1 week), no. (%)	-	1 (9.1)
Moderate (1-4 weeks), no. (%)	-	9 (81.8)
Severe ( > 4 weeks), no. (%)	-	1 (9.1)

SD, standard deviation; *self-reported