Classification
| Type | auxiliary |
| Mechanics | isolated |
| Direction | pull |
| Equipment | water bottle |
| Additional Equipment | flat bench / other seat |
Instructions
Preparation
Grasp bottle and sit on chair. Place feet apart and put back of upper arm against inner thigh.Execution
Flex arm to raise bottle toward shoulder. Return, keep arm slightly flexed. Repeat.Variations / Comments
Concentration curls have to be done slowly, don't pull shoulders back. Avoid any swinging of torso.
Starting Position 
Ending Position Muscles
| Target | Brachialis |
| Synergist | Biceps Brachii | Brachioradialis |
| Stabilizers | Trapezius, Upper | Trapezius, Lower | Obliques | Erector Spinae | Wrist Flexors |
Front
Rear
