For your abs
For your abs, cable crunch rates well ahead on our research criteria: easier to progress, more of the work on the abs.
Both are good choices that train the abs 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
Cable Crunch. Loadable spinal flexion: the abs finally get progressive overload like any other muscle.
For your abs, cable crunch rates well ahead on our research criteria: easier to progress, more of the work on the abs. Both are good choices that train the abs 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.
Cable crunch needs a cable station, so for most people it’s a gym exercise. Hanging knee raise needs a pull-up bar, so a home gym covers it.
About the same: both rate Excellent for joint and recovery cost in our research rubric.