Classification
| Type | auxiliary |
| Mechanics | isolated |
| Equipment | chair |
| Additional Equipment | - |
Instructions
Preparation
Sit upright on chair. Don´t lean against backrest. Place feet flat on floor and hold one arm extended in front of chest while other arm sags besides torso.Execution
Alternately move arms up and down. Extend fingers while moving up and relax fingers while moving down.Variations / Comments
.-
Starting Position 
Ending Position Muscles
| Target | Hand Extensors |
| Synergist | Deltoid, Anterior | Deltoid, Lateral | Trapezius, Middle | Trapezius, Lower | Pectoralis Major, Clavicular | Serratus Anterior |
| Stabilizers | Trapezius, Upper |
Front
Rear
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