Lever Tool

POSITIONING/ PHASE ONE

• elbow should be extended
• shoulder should be flexed
• should be arms length away from the lever

PULL PHASE

• pull lever towards you
• shoulder should go down slightly (depression)
• elbow should bend (flexion)
• Shoulder Girdle:
• pectoralis minor in frontal plane, eccentrically, for depression of shoulder.
• trapezius lower fibers in frontal plane, eccentrically, for depression of shoulder.
• Elbow/ Radioulnar Joints:
• biceps brachii long head in sagittal plane, concentrically, for elbow flexion.
• biceps brachii short head in sagittal plane, concentrically, for elbow flexion.
• brachialis in sagittal plane, concentrically, for elbow flexion.
• brachioradialis in sagittal plane, concentrically, for elbow flexion.
• pronator teres, isometrically, in transverse plane to keep forearm slightly pronated.
• Wrist/ Hand Joints:
• flexor digitorium superficialis, isometrically, in sagittal plane to keep fingers flexed around tool.
• flexor digitorum profundus, isometrically, in sagittal plane to keep fingers flexed around tool.

RELEASE PHASE

• slowly release lever back to original position.
• shoulder should elevate slightly.
• elbow should extend.
• Shoulder Girdle:
• Trapezius upper fibers in frontal plane, concentrically, for elevation of shoulder.
• Trapezius middle fibers in frontal plane, concentrically, for elevation of shoulder.
• Rhomboids in frontal plane, concentrically, for elevation of shoulder.
• Levator scapulae in frontal plane, concentrically, for elevation of shoulder.
• Elbow/ Radioulnar Joints:
• Triceps brachii long head in sagittal plane, eccentrically, to control extension of elbow.
• Triceps brachii lateral head in sagittal plane, eccentrically, to control extension of elbow.
• Triceps brachii medial head in sagittal plane, eccentrically, to control extension of elbow.
• Anconeus in sagittal plane, eccentrically, to control extension of elbow.
• Wrist/ Hand Joints:
• flexor digitorum superficialis, isometrically, in sagittal plane to keep fingers flexed around tool.
• Flexor digitorum profundus, isometrically, in sagittal plane to keep fingers flexed around tool.

Drill/ Home Exercise:

The following is a home exercise one could use to flex elbow.