Pendulum Grip Pro

The coupling between the grip and load forces at the fingers and palmar surface is a defining characteristic of lifting objects.  When gripping is a contact force that is perpendicular  to  the surface, keeping the object from passing through our grasp as we lift, pull or hold, often requires wrist involvement. Most of the power for generating forces in the fingers arises from muscles located in the forearm. 

When this coupling of grip and load force occurs controlling an object becomes the modification of the forces and application in a coordinated manner. As we grasp, activating the extrinsic muscles of the fingers located in the forearms can produce wrist  action which enables one to increase higher grip forces. Wrist movement while gripping yields higher grip-load ratios when the grasp is employed at 25-35 degrees of wrist extension and maximal grip strength can be achieved without significantly compromising grip endurance. Grip strength is reduced when wrist position deviates from this self-selected position.

Wrist Extensors Aid in Grasping