Sprint and jump performance in elite male soccer players following a 10-week Nordic Hamstring exercise Protocol: a randomised pilot study

Table 2 Sprint and jump performance for intervention and control group before and after mid-seasonal training period

	Nordic group			Control group			Between-group mean difference of changes
	Nov	Mar	Δ (%)	Nov	Mar	Δ (%)	Between-group mean difference of changes
30 m (s)	4.10 ± 0.15	4.20 ± 0.14	+ 0.09 (+ 2.42%) ± 0.20	4.00 ± 0.09	4.16 ± 0.20	+ 0.15 (+3.88%) ± 0.15	0.04
5 m split (s)	0.90 ± 0.10	0.81 ± 0.10	− 0.08 (− 9.40%) ± 0.15	0.83 ± 0.02	0.85 ± 0.14	+ 0.02 (+3.21%) ± 0.12	0.10
10 m split (s)	1.68 ± 0.15	1.58 ± 0.13	− 0.09 (− 5.77%) ± 0.15	1.58 ± 0.04	1.63 ± 0.15	+ 0.05 (+3.17%) ± 0.11	0.14
CMJ (cm)	43.82 ± 3.67	44.97 ± 3.89	+ 1.15 (+ 2.63%) ± 4.20	44.47 ± 5.38	43.48 ± 5.85	− 0.98 (− 2.22%) ± 5.60	2.13

Group mean values and standard deviations. Only values for players who completed pre and post tests are presented. All between-group differences are in favor of the Nordic group. The sprint test performed was 30 meters sprint with standing start and split times after 5 and 10 meters (n = 9 in the intervention group and n = 5 in the control group). The jump test performed was a counter movement jump (CMJ; n = 9 in the intervention group and n = 8 in the control group)

ISSN: 1756-0500