Smart Workout Diary

Barbell Curl

The barbell curl is an isolation exercise in which you curl a barbell toward the shoulders by bending the elbows. It primarily trains the biceps, with assistance from the forearms, and supports arm strength and muscle development.

Demonstration

Barbell Curl — demonstration 1
Barbell Curl — demonstration 2

Instructions

  1. Set up: Stand tall with feet about hip-width apart and hold a barbell in front of your thighs with an underhand grip, hands about shoulder-width apart.
  2. Brace: Keep your chest lifted, shoulders relaxed and slightly back, wrists neutral, and elbows close to your sides.
  3. Curl: Exhale as you bend your elbows and raise the barbell in a controlled arc toward the front of your shoulders. Keep your upper arms still.
  4. Pause: Briefly squeeze your biceps at the top without driving the elbows forward or leaning back.
  5. Lower: Inhale and lower the barbell slowly until your elbows are nearly straight, maintaining control and avoiding a hard lockout.
  6. Repeat safely: Use a load that lets you avoid swinging the torso. Stop if you feel sharp pain in the wrists, elbows, or shoulders.
Muscle Group
Biceps
Type
Strength
Mechanics
Isolation
Equipment
Barbell
Difficulty
Beginner

Technique tips

  1. Keep the torso still: Do not use hip drive or lean backward to lift the bar; reduce the load if this happens.
  2. Control the lowering phase: Lowering slowly helps keep tension on the biceps and prevents the bar from dropping abruptly.
  3. Protect the wrists: Keep the knuckles and forearms aligned rather than bending the wrists back or forward.
  4. Use a comfortable range: Curl as high as you can without the shoulders rolling forward, and stop short of any painful joint position.
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