Steps
- Secure a band to the base of a rack or the bench. Lay on the bench so that the band is lined up with your head.
- Take hold of the band, raising your elbows so that the upper arm is perpendicular to the floor. With the elbow flexed, the band should be above your head. This will be your starting position.
- Extend through the elbow to straighten your arm, keeping your upper arm in place. Pause at the top of the motion, and return to the starting position.
Tracking it in OneRep
Add the band skull crusher to a routine and your previous weight and reps sit beside every set, so the decision to add load is made by what is already on the screen rather than by memory. Exercise history and volume trends are one tap away, and logging works offline for the gyms where signal does not reach.
Because OneRep tracks food on the same timeline, a stall on this lift can be read against what you were actually eating that month — which is the difference between a programming problem and an eating one. More on that in tracking progressive overload without a spreadsheet.
Where the instructions come from
The steps above come from free-exercise-db, a public-domain exercise dataset. They are general guidance, not coaching for your body: if a movement hurts, stop and get someone qualified to look at it.