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Table 1 Tests of muscle function

From: Hop tests and psychological PROs provide a demanding and clinician-friendly RTS assessment of patients after ACL reconstruction, a registry study

 Degrees of movementPractice trials n (% of 1RM)Test trials (n)Rest between test trials (seconds)Units
Knee extension90°-0°10 (50%);3–440Newton meters
10 (75%);
1–2 (90%)
Knee flexion0°-90°10 (50%);3–440Newton meters
10 (75%);
1–2 (90%)
Vertical hop2320Centimeters
Hop for distance23–520Centimeters
Side hop30 s180Number of hops
  1. n = number; 1RM = one repetition maximum