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Overcrush
Watch the Video - Gripper Overcrush (WMV)
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An overcrush involves crushing the gripper handles together as hard as possible for several seconds, resulting in an isometric in the fully closed gripper position. Similar to a strap hold, this exercise is performed on a gripper one has dominance over and focuses on developing strength for the final bit of the gripper close.
Squeeze the gripper as hard as possible.
