From: Relationships between postural orientation and self reported function, hop performance and muscle power in subjects with anterior cruciate ligament injury
KOOS sport/rec
Hop test
Muscle power
Vertical jump (cm)
One-leg hop (cm)
Side hop (n)
Knee extension (W)
Knee flexion (W)
Leg press (W)
75 ± 3.5
16.1 ± 0.6
131.1 ± 3.3
36.3 ± 2.0
239.1 ± 11.3
164.3 ± 7.5
476.1 ± 20.0