Table 2. Subject Characteristics (N=202).

	Group A (N=66)†	Group B (N=73)†	Group C (N=63)†	p-⁠value
Age (years)*	16.4±0.9 (15－18)	16.0±0.7 (15－18)	16.1±0.9 (15－18)	0.47
Height (cm)*	170.7±5.7 (156.0－186.3)	169.2±5.2 (157.2－184.0)	170.3±5.1 (160.0－180.0)	0.24
Weight (kg)*	60.2±7.1 (40－83)	58.4±7.2 (42－80)	58.5±6.5 (45－74)	0.39
Dominant foot (players)				0.22
Right	55	67	52
Left	11	6	11
Field position (players)				0.74
Attackers	10	12	11
Midfielders	24	27	23
Defenders	26	23	24
Goalkeepers	6	11	5

^*The minimum-maximum is listed.

^†Group A Copenhagen adduction exercise alone. Group B combined Copenhagen adduction exercise and Nordic hamstrings exercise. Group C continues as usual.