Skip to main content

Cable Single Arm Curl

Step by step instructions, muscle activation and variants for the Cable Single Arm Curl.

MediumBiceps

About this exercise

A unilateral biceps curl performed with a low cable pulley, allowing independent work on each arm. The cable maintains constant tension at the bottom of the movement where a dumbbell goes slack, making it highly effective for biceps isolation and peak contraction.

How to Perform

  • Set a cable pulley to the lowest position and attach a single D-handle
  • Stand or sit facing the machine and grip the handle with one hand, palm facing up
  • Keep your upper arm stationary against your side and curl the handle upward toward your shoulder
  • Squeeze your biceps hard at the top of the movement
  • Slowly lower the handle back to full arm extension under control
  • Complete all reps on one arm before switching to the other

Muscle Activation

Primary
Biceps
Secondary
Outer forearm

About the Cable Single Arm Curl

The Cable Single Arm Curl is a foundational movement that builds strength and muscle through controlled, progressive overload. Train it 1 to 2 times per week with 3 to 5 working sets per session, gradually adding weight or reps as form holds up.