Hand Grip Strength Test
Module
1
Contents
• Each site will receive one hand grip dynamometer case
containing:
– 1 x Jamar Hydraulic Hand Dynamometer
– 1 x Jamar Hydraulic Hand Dynamometer Instruction Manual
– 1 x Jamar Certificate of Calibration
2
Parts of a Dynamometer
• After removing the Dynamometer, check that the black
Gauge Needle is above the “0”.
3
Resetting the Gauge Needle
• If the gauge needle is not above the zero, remove the
crystal and using a flathead screw driver move the
needle until it is set above the “0” mark
4
Preparation for the Test
• Rotate the red
Peak-Hold
Needle counterclockwise to zero
• Pass the
• Have the patient
Dynamometer to
grip and place
the patient
the strap on the
wrist of their
• Do not hold
dominant hand
Dynamometer from
the gauge (top)
Adjusting the Handle
• If the handle feels too large or small for the patient to
grip comfortably, remove Dynamometer from the patient
and adjust accordingly as shown
6
Conducting the Test
• Have the patient sit upright in a chair with an arm rest.
The patients elbow should be at a 90˚ angle
• Have the patient squeeze with their maximum strength.
Sustain for 5 seconds. The peak-hold needle will
automatically record the highest force exerted
7
Conducting the Test
• Record the peak value in pounds (inside dial) as shown
by the red Peak-Hold Needle
This would be a reading of
120 pounds.
• Repeat test 2 more times
• Sterilize Dynamometer with an alcohol wipe between
patients
8