Strength Measurements in ACLR

Strength Measurements in ACLR

1. Isokinetic dynamometry

   • Peak torque
     • Reduced ability to tolerate external forces internally
   • Torque through range
     • Specific range deficit leading to inability to resist at this range

2. Rate of force development

   • More of a performance measure than something that would lead to injury

3. Mode B Ultrasound for muscle thickness and pinnation angle

   • Inability to produce sufficient force to enable specific sports movements like COD/decels/accel
     • Fatigue of the ACL
     • Inability to slow down a movement
     • Reduced planning of movements
       • ?
   • DEXA
   • MRI

4. Motor Control

   • Biomechanics
     • Knee valgus
     • Trunk sway
     • Pelvic drop
     • Ankle inversion
     • Tibial eversion
     • Femoral inversion
   • Reduced co-ordination of movements
   • EMG
     • Activity of muscle
       • Muscle inhibition

5. RSI