The Machine
• Axis Alignment - The axis or pivot point of
the machine is properly positioned to allow
alignment with the elbow joints.
• Neutral Grip - The neutral handles allow full
extension without shoulder rotation as well as
a powerful and stable position of the wrist and
hand.
• Variable Resistance - The cam provides
increased resistance at the point in the range
where force output of the triceps is the greatest.
• 10 to 205 Pounds by Fives - The top plate
provides a minimum weight of pounds.
Subsequent plates in the weight stack are
twenty pounds each. Three “slide-on” five pound incremental plates are securely
positioned for easy access and effort less addition thereby providing 10 to 205 pounds in
five pound increments.
The Triceps
• Elbow Extension - The triceps brachii is
responsible for extension of the elbow joint. The
triceps insert on the olecranon of the ulna and is
not involved in or directly affected by the position
of the radioulnar joint. However, full pronation
often encourages internal rotation of the shoulder
in order to achieve full elbow extension. The long
head of the triceps originates on the scapula and is
an assistant mover of shoulder extension and
adduction, however, it is more effective at stabiliz-
ing the shoulder than moving it. It should be noted
that any movement of the shoulder joint during
resisted elbow extension may decrease the effec-
tiveness of the exercise.
• Range of Motion - Normal elbow motion is 0 to
150 degrees. During isolated triceps work
the range of motion is limited by the user’s ability to control the triceps in extension
concentrically and flexion eccentrically.
• Associated Muscles - The anconeus is also a prime mover for elbow extension.
CYBEX VR2 Owner’s Manual
MUSCLES TRAINED
Exercise
Page 3-65
Arm Extension
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