For biceps growth
For biceps growth, Bayesian cable curl rates well ahead on our research criteria: more stretch, easier on the joints.
Barbell curl is easier to progress.
Both are good choices that train the biceps the same way, so they swap freely. Rotating between them every few weeks is an easy way to vary your training.
The research score comes from these, scored by hand from the studies. Lifter scores appear once an exercise has 10 ratings. How scores work
Barbell Curl. The classic heavy curl and easy to load, but the biceps are barely stretched at the bottom.
Bayesian Cable Curl. Arm behind the body puts the biceps under load in its longest position.
For biceps growth, Bayesian cable curl rates well ahead on our research criteria: more stretch, easier on the joints. Barbell curl is easier to progress. Both are good choices that train the biceps the same way, so they swap freely. Rotating between them every few weeks is an easy way to vary your training.
About the same: both are easy to learn.
Barbell curl needs a barbell, so for most people it’s a gym exercise. Bayesian cable curl needs a cable station, so for most people it’s a gym exercise.
Bayesian cable curl: it rates Excellent for joint and recovery cost in our research rubric, against Strong for barbell curl.