1
Stand facing the cable machine with feet shoulder-width apart, knees slightly bent, and core engaged. Position yourself at an appropriate distance from the machine so the cable is taut at arm's length.
2
Grasp the cable handle with both hands using an underhand (supinated) grip, with arms extended downward at your sides. Ensure your elbows remain close to your torso throughout the movement.
3
Slowly lower the handle by extending your arms downward against the cable resistance, allowing the biceps to lengthen under tension. Maintain control and avoid jerky movements, keeping elbows stationary.
4
Curl the handle upward by flexing at the elbows, bringing your hands toward your shoulders in a controlled motion. Squeeze the biceps at the top of the movement, then return to the starting position with arms fully extended.