Biceps Curl - Instructions, Variations & Alternatives
Muscles involved
Section titled “Muscles involved”- Biceps
 
How to perform
Section titled “How to perform”
  Biceps Curl - Starting position
  Biceps Curl - Muscle Under Tension
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Set up & Starting position (standing, seated)
Grab the weight with a supinated (underhand) grip. Your hands should be slightly wider than your hips and elbows touching your ribs. - 
Concentric phase
Holding the upper arm stationary, lift the weight up toward the shoulders until your biceps are fully contracted. - 
Isometric hold (optional) - Hold this position for one second and squeeze the biceps.
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Eccentric phase
Lower the weight to the starting position and repeat the movement.