Hand dynamometers are special therapeutic devices designed to assess and quantify the most intense isometric quality of the hand and forearm muscles. Use medical dynamometers to measure hand strength. There's a saying that you can tell a lot about a guy from the power of their handshake. Although the saying may have more to do with the character of an individual, it is still quite real. Analysis has shown that grip strength can be correlated to and predictive of other health conditions. The aim of using a hand dynamometer is to calculate the overall isometric strength of the forearm and forearm muscles. The hospital dynamometer can be tailored to the scale of the hand and must be tuned frequently for reliable performance. Furthermore, providing specific protocols for the procedure used in the administration of the test would also ensure reliability.