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Table 2 Marx Activity Level (points), knee extensor strength (N*kg− 1), and knee flexor strength (N*kg− 1)

From: Thigh musculature stiffness during active muscle contraction after anterior cruciate ligament injury

Variable Control (n = 25)Pre-Surgery (n = 25)6 month (n = 19)12 month (n = 11)
Marx Activity Level 16.0 (5.0)15.5 (2.8)14.0 (10.0)10.0 (10.0)c
Quadriceps Fmax, N*kg−1Injured7.1 (4.0)6.9 (2.6)5.6 (3.4)7.9 (2.7)c
 Non-injured7.5 (4.4)8.4 (2.6)b8.5 (5.1)b9.2 (3.7)
Hamstrings Fmax, N*kg−1Injured3.9 (2.4)4.1 (1.7)4.2 (2.3)5.0 (3.1)
 Non-injured4.0 (1.9)4.7 (1.3)b4.6 (1.6)b4.7 (2.0)b
  1. Divided by Group. Values are expressed as median (IQR). N, Newton.
  2. bIndicates significant difference between limbs (P < 0.05)
  3. cIndicates significant difference between ACL-injured group and controls (P < 0.05)