Table 2 Assessment by ultrasonography and SEMG
Quadriceps thickness by ultrasonography | Assessment 1 (preACLR) | Assessment 2 (1 m Post ACLR) | Assessment 3 (3 m Post ACLR) | P value* | P value** |
|---|---|---|---|---|---|
Quadriceps thickness by ultrasonography*** | |||||
Quadriceps thickness of injured limb | 4.0 (3.5, 4.5) | 3.3 (3.1, 3.7) | 3.5 (3.0, 4.0) | < .001 | < .001 |
Percent deficit in thickness of injured limb compared to normal limb | 5.4 (2.5, 8.8) | 21.0 (15.7, 27.4) | 20.6 (12.8, 27.6) | < .001 | 0.1 |
Maximum MUAP of Rectus Femoris muscle on SEMG *** | |||||
MUAP for injured limb | 2007.0 (1400.8, 3189.8) | 1828.5 (1118.5, 2568.3) | 1661.5 (1250.3, 1942.8) | < .001 | 0.1 |
Percent deficit in MUAP for injured limb compared to normal limb | 13.1 (6.9, 28.1) | 30.9 (22.5, 43.9) | 39.8 (30.2, 51.0) | < .001 | 0.017 |
Maximum MUAP of Vastus lateralis muscle on SEMG *** | |||||
MUAP for injured limb | 831.0 (644.8, 1479.5) | 747.5 (582.8, 1478.5) | 728.5 (537.0, 1348.5) | < .001 | 0.6 |
Percent deficit in MUAP for injured limb compared to normal limb | 16.1 (11.8, 21.0) | 26.9 (19.7, 34.7) | 32.1 (26.6, 39.5) | < .001 | 0.1 |