What you'll gain

Builds biceps size and peak with constant cable tension.
Trains both heads of the biceps through a full range of motion.
Reinforces strict elbow mechanics for cleaner curl form.

Step-by-Step Instructions

1
Set the pulley to the lowest position and attach a straight bar, then grip it underhand at shoulder width.
2
Step back so the cable has tension at full arm extension and stand tall with your elbows tucked at your ribs.
3
Curl the bar up toward your shoulders by bending only at the elbows, keeping the upper arms locked in place.
4
Squeeze the biceps hard at the top with the bar a few inches from your collarbone.
5
Lower the bar slowly over 2 to 3 seconds, fighting the cable tension all the way back to full extension.
6
Reset your stance and repeat for 10 to 15 controlled reps without using your back or hips.

Common Mistakes

Swinging the torso back to fling the bar up, which steals load from the biceps and risks lower-back strain.
Letting the elbows drift forward at the top, turning the curl into a partial front raise.
Cutting the lockout short at the bottom, missing the long-head stretch where most growth lives.
Rushing the lowering phase, which throws away the highest-tension half of the rep where the biceps grow most.

About This Exercise

The cable bar curl is a standing biceps exercise performed from a low cable pulley with a straight bar attachment. Unlike a barbell curl, the cable keeps tension on the biceps through the entire range of motion — there's no rest at the bottom and no slack at the top. It hits the long and short heads of the biceps evenly and is a staple of any arm-focused training block. For app and content use, this clip slots cleanly into pull-day finishers, dedicated arm days, and hypertrophy-focused programs. It's also a clean teaching reference for beginners learning the curl pattern, since the cable enforces a clean elbow path and discourages body english. Pair it with pushdown clips for a full arm-day pairing in your library.

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