Knee joint angular velocities and accelerations during the patellar tendon jerk.

Maria K Lebiedowska1, Siddhartha Sikdar, Avinash Eranki

  • 1Health Effects Lab Division, Engineering and Control Technology Branch, National Institutes of Occupational Safety and Health, 1095 Willowdale Road MS 2027, Morgantown, WV 26505, USA. MLebiedowska@cdc.gov

Summary

The tendon jerk (TJ) test generates muscle accelerations exceeding those in daily activities, but velocities remain within normal ranges. This finding clarifies the physiological interpretation of the tendon jerk test in diagnosing motor disorders.

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