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Jamar Hand Dynamometer to Measure Grip Strength

A device that measures one’s hand grasp strength. This tool assesses one’s progress through hand rehabilitation following injury or illness such as stroke and deconditioning. Commonly found in rehab centers that attempt to retrain weakened muscles.


  • An accurate and reliable way to measure one’s progress with grasping.
  • Results on this test can be compared to average cohort scores for groups of similar ages


  • Device needs to be calibrated from time to time to ensure its measurements are accurate
  • This assessment tool is expensive to purchase