Cable Curl
Constant tension is what separates the cable curl from its free-weight cousins. A low pulley keeps resistance on the biceps at the bottom and the top of the rep — the two spots where a barbell or dumbbell curl goes slack. That makes it excellent for high-rep sets, drop sets, and chasing a pump, and the smooth resistance is kind to elbows that grumble under heavy free-weight curling.
How to do the cable curl, step by step
- Attach a straight or EZ bar to a low pulley and grab it with an underhand, shoulder-width grip.
- Step back a foot or two so the cable is taut with your arms fully extended.
- Stand tall, elbows pinned to your sides, shoulders back.
- Curl the bar toward your collarbone, keeping the elbows in place.
- Squeeze hard at the top — the cable still resists here, so make the squeeze count.
- Lower for two to three seconds to full arm extension without letting the stack touch down, and repeat.
Form cues that fix most reps
Stay far enough from the pulley that there is tension even with straight arms.
Because the resistance never disappears, slightly higher reps and shorter rests suit this lift well.
Keep the stack off its resting pin between reps — touching down gives the biceps a break they don't need.
Common mistakes (and the fix)
Cable Curl sets and reps
Match the rep range to your goal, not the other way around. These are the standard evidence-based ranges:
| Goal | Sets × Reps | Rest |
|---|---|---|
| Strength | 3–5 × 3–6 | 2–3 min |
| Muscle growth | 3–4 × 8–12 | 60–90 sec |
| Endurance | 2–3 × 15–20 | 30–60 sec |
How our free programs prescribe it
Cable Curl FAQ
What muscles does the cable curl work?
The biceps brachii does the curling with support from the brachialis and forearm flexors — the same muscles as a barbell curl. The difference is the loading profile: the cable keeps those muscles under tension through the entire range instead of mainly the middle.
How many sets and reps should I do?
Three to four sets of 10–15 reps takes best advantage of the constant tension. It is also the ideal movement for drop sets — pull the pin, drop a couple of plates, and continue — as a finisher after heavier curls.
Are cable curls better than barbell curls?
Neither dominates. The barbell allows heavier loading and simple progression; the cable delivers tension in the ranges the bar misses and is easier on the elbows. A sensible arm program uses a heavy free-weight curl first and a cable curl second, rather than picking a winner.
More biceps exercises
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