Table 1. Descriptive characteristics of the subjects. Data are means (±SD).

Groups	FIFA 11+	HarmoKnee	Control
	n = 12	n = 12	n = 12
Age (y)	19.2 (.9)	17.7 (.4)	19.7 (1.6)
Height (m)	1.80 (.05)	1.80 (.06)	1.80 (.05)
Mass (kg)	71.7 (4.6)	71.0 (7.6)	76.4 (5.8)