Leaning back to finish reps
Reduce the weight and keep the torso still so the biceps do the work.
Isolation · Cable
A biceps curl done with a bar or handle attached to a low cable pulley. The cable keeps tension on the biceps through the whole range, including the bottom where dumbbells go slack. Useful for lifters of all levels as a main or finishing curl.
The biceps flex the elbow and turn the palm up, so a supinated grip on a straight or EZ attachment trains them directly. The brachialis and forearm flexors assist but are not the focus.
Reduce the weight and keep the torso still so the biceps do the work.
Keep the elbows tucked at your sides; if they come forward, the load is too heavy.
Let the arms straighten fully at the bottom to train the stretched position.
Surpass starts the cable curl at 10–15 reps with about 1 reps in reserve. As an isolation exercise it fits well after your main compound lifts.
Add reps within your target range before moving the pin down a plate. If stack jumps are too big, add a small add-on weight or slow the lowering phase instead.
Surpass shows what you lifted last time beside a target for this set, and adjusts it from your reps and RIR. Free on iPhone, no account needed.
These train the same main muscles. Swap when the equipment is busy, something hurts, or progress has stalled for several weeks.
Cables keep tension at the bottom of the curl, while dumbbells are easier to load and progress unilaterally. Both build the biceps well; many people use cables as a second curl variation.
A straight bar gives the most supination and biceps emphasis, an EZ bar is easier on the wrists, and a rope shifts work toward the brachialis. Pick the one that feels best on your joints.