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Table 1 Baseline data of the intervention and control group

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

 

Nordic group (n = 9)

Control group (n = 10)

Age (years)

23.0 ± 3.9

25.1 ± 4.9

Body mass (kg)

73.1 ± 5.8

77.9 ± 9.9

Height (m)

1.83 ± 0.05

1.81 ± 0.07

BMI (kg/m2)

21.8 ± 1.6

23.7 ± 2.0

Cooper test (m)

3052.5 ± 291.4

3102.5 ± 363.2

Squat 1RM load (kg)

93.6 ± 25.1

111.3 ± 8.5

30 m sprint (s)

4.101 ± 0.159

4.036 ± 0.095

5 m split (s)

0.904 ± 0.108

0.838 ± 0.027

10 m split (s)

1.686 ± 0.152

1.599 ± 0.047

CMJ (cm)

43.8 ± 3.7

42.6 ± 6.7

  1. Group mean values and standard deviations obtained in November 2008. BMI body mass index, RM repetition maximum. The Cooper test is a 12-min running test of physical fitness. The squat was performed as a full barbell squat with the femurs parallel to the ground. Some measures involved different number of players; the Cooper test (n = 8 in both groups); the sprint test (n = 9 in the Nordic group and n = 8 in the control group); the countermovement jump test (CMJ; n = 9 in both groups); and Squat 1RM (n = 7 in the Nordic group and n = 4 in the control group)