· measure from zero up to 220 pounds (100 kilograms)
· measurement gradations are every 5 lbs. (within black outer ring) and are every 2 kilograms (within white inner ring)
· comes with carrying case
The Smedley spring-type dynamometer has been used successfully for many years to measure grip strength. Adjustable handle comfortably accommodates any hand size. Unit is calibrated in both pounds and kilograms. Force indication pointer remains at maximal force until reset. To reset, simply rotate pointer counter-clockwise until it resets the zero pin.
Grip Size: To size grip, open latch on right side of dynamometer so grip could rotate freely. Rotate grip clockwise for larger grip and counter-clockwise for smaller grip. As a grip size reference, measure the distance between grip base and base of frame. Record this measurement. When appropriate grip size is reached, close latch and administer grip test. Tests should not be administered while grip can rotate freely. Grip size should always be the same for a single individual.
Procedure: When administering grip strength tests, face gauge outward, facing away from patient. Stabilize patient's arm and instruct patient to gradually increase effort until maximum effort is attained. This might take three seconds or so. Record reading and reset dial. Repeat test three times, allowing the patient a brief period to rest between each trial and use the average of the three trials to determine grip strength.
