For triceps growth
For triceps growth, rope pushdown rates well ahead on our research criteria: easier to progress, more of the work on the triceps.
Dumbbell skull crusher gives more stretch.
Both are good choices that train the triceps 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
Dumbbell Skull Crusher. Dumbbells let each arm find a comfortable path with a decent long-head stretch. Awkward to load heavy.
Rope Pushdown. Simple and joint-friendly, but the long head never gets stretched.
For triceps growth, rope pushdown rates well ahead on our research criteria: easier to progress, more of the work on the triceps. Dumbbell skull crusher gives more stretch. Both are good choices that train the triceps 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.
Dumbbell skull crusher needs dumbbells and a bench, so a home gym covers it. Rope pushdown needs a cable station, so for most people it’s a gym exercise.
Rope pushdown: it rates Excellent for joint and recovery cost in our research rubric, against Strong for dumbbell skull crusher.