Category: Knee

  • Internal / External Rotation

    Internal / External Rotation

    Internal and external rotation of the knee is a popular test especially in ski-ing populations. The popliteus and hamstrings muscles play a significant role in rotating the knee (internally and externally) to aid unlocking and locking the knee. It should be noted that this position stretches the ligaments at t the rear of the knee…

  • Knee Flexion / Extension

    Knee Flexion / Extension

    Until the late 1970s 75% of all isokinetic use and research was based on a single joint system – the knee. With more recent progress in rehabilitation and knee surgery this trend no longer exists. The basic design of isokinetic dynamometers (except for special purpose units) has not changed since the original instrumentation became available…