Hand Gripper Tool

POSITIONING/ PHASE ONE

• place hand on tool with thumb on the bar closest to your body and the other four fingers on the bar furthest away from your body.
• The height of the machine should be in such a way that the elbow is bent(flexed) at about 100 degrees.
• shoulder should be relaxed.

SQUEEZE PHASE

• Squeeze the bar furthest from  your body by bending (flexing) your four fingers, to the bar that is closest to you.
• keep elbow flexed in the same position.
• keep shoulder in the same position.
• only use your fingers.
• Elbow/ Radioulnar Joints:
• Bicep brachii long head, isometrically, in sagittal plane to keep elbow flexed.
• Bicep brachii short head, isometrically, in sagittal plane to keep elbow flexed.
• Brachialis, isometrically, in sagittal plane to keep elbow flexed.
• Brachioradialis, isometrically, in sagittal plane to keep elbow flexed.
• Wrist/ Hand Joints:
• Flexor digitorum superficialis, concentrically, in sagittal plane to flex fingers.
• Flexor digitorum profundus, concentrically, in sagittal plane to flex fingers.
• Flexor pollicis longus, isometrically, in sagittal plane to keep thumb flexed.

RELEASING PHASE

• slowly release and control your hand/finger opening(extension) until its back into original position.
• shoulder and elbow should not move.
• only fingers should be moving.
• Elbow/ Radioulnar Joints:
• Bicep brachii long head, isometrically, in sagittal plane to keep elbow flexed.
• Bicep brachii short head, isometrically, in sagittal plane to keep elbow flexed.
• Brachialis, isometrically, in sagittal plane to keep elbow flexed.
• Brachioradialis, isometrically, in sagittal plane to keep elbow flexed.
• Wrist/ Hand Joints:
• Flexor pollicis longus, isometrically, in sagittal plane to keep thumb flexed.
• Extensor digitorum, eccentrically, in sagittal plane to extend fingers.
• Extensor indicis, eccentrically, in sagittal plane to extend fingers.
• Extensor digiti minimi, eccentrically, in sagittal plane to extend fingers.

Drill/ Home Exercise:

The following is a home exercise to help with gripping; flexion and extension of the fingers.