SAFETY PRECAUTION :
Carefully read this operation manual before setup, even if you are already familiar with SAEHAN
Spring dynamometer.
Precautions for use
-
Do not set the handle grip to a position less than 4 cm as shown by the grip size
scale.
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Do not turn the cap.
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Do not drop the instrument, otherwise, it may be damaged, Handle it carefully.
-
Do not use or keep the device in direct sunlight, in area of high temperature,
especially in places near heating equipment, in moist or dusty places, or where it will
be directly exposed to water.
-
If the device is dirty, wipe it with a soft, dry cloth, if very dirty, use a cloth wet with a
neutral detergent. Do not use thinner, alcohol, or similar liquids. They will damage
the surface of the device.
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Do not test if you have arm or shoulder pain, or high, uncontrolled blood pressure.
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Use the proper technique as described below for accurate and consistent results. If
needed, ask for a demonstration.
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Adjust the handgrip dynamometer so the second joint of the fingers fit snugly on the
handle when gripping. Hold the dynamometer with arm extended down about thigh
level.
-
Make a maximal squeeze. Don’t let the dynamometer touch any part of the body or
any other object. Also avoid sudden thrusts or jars, which can make the reading
inaccurate.
-
When squeezing, breathe out or exhale during contraction to prevent high
intrathoracic pressure. Don’t hold your breath and strain.
-
Measure both hands. Take three tries per hand. Combine the best score of each
hand to give a total grip strength reading. Record test results in kilograms.
OPERATING INSTRUCTION :
1.
Have Subject hold the spring Hand Dynamometer with the scale facing away from his
face. Adjust the grip size until the joints of the Subject’s fingers are approximately on a
plane perpendicular to the scale plate. When the adjustment is optimal, the subject will
sense he can comfortably exert his maximum grip.
2.
Move the pointer to zero with your finger.
3.
Subject should stand straight with his weight evenly distributed on both feet. With his
arms hanging at his sides, he should squeeze the Spring Hand Dynamometer with as
