Table 5.

Changes in performance between the first and second screening rounds

Test	Δ% non-injured (round 1 vs 2) n=70	Δ% injured (round 1 vs 2) n=7	OR between HMI and drops in performance (95% CI)
Jurdan	2.60 (8.73)	−2.04 (7.92)	−0.69 (−2.27 to 0.88)
Jurdan asymmetry	−1.54 (7.18)	1.38 (5.08)	1.73 (−0.43 to 3.90)
Active straight leg raise	3.41 (8.77)	0.48 (5.18)	−0.69 (−2.27 to 0.88)
Active straight leg raise asymmetry	−0.66 (5.25)	−0.13 (4.46)	0.86 (−0.85 to 2.57)
Kickback	−0.44 (5.10)	−0.38 (1.44)	0.06 (−1.51 to 1.63)
Theoretical maximal horizontal force	2.22 (5.09)	−4.44 (2.89)	−2.78 (−4.96 to 0.59)*
Hip force	4.29 (16.0)	0.37 (6.12)	0.27 (−1.45 to 1.98)
Hip force asymmetry	1.34 (6.98)	3.88 (9.55)	1.14 (−1.03 to 3.32)
Knee force	5.01 (12.3)	−6.11 (10.2)	−1.83 (−3.55 to to 0.11)*
Knee force asymmetry	0.91 (8.76)	2.03 (10.2)	−0.46 (−2.03 to 1.11)

*p<0.5.

HMI, hamstring muscle injury.