Reverse-grip pushdown that nails the inner triceps head.
Keep your elbows pinned and wrists straight, don't let the bar drag them forward.
Flipping to a palms-up grip changes how your triceps handle the pushdown, biasing the medial head that runs along the inside of your arm and keeping your elbows honest at your sides. The cable stack provides smooth resistance from the stretched top position to a hard lockout at the bottom, with no dead spots anywhere in the rep. It is a smart rotation with the standard overhand pushdown, especially if your elbows tend to flare or your lockout strength lags.
It shifts emphasis toward the medial head of the triceps and makes it much harder to cheat by flaring your elbows or leaning on the bar. Expect to use noticeably less weight than your overhand pushdown.
You are probably letting your wrists bend backward under the bar. Keep them locked straight and drop the weight until you can hold that position through the full rep.
No. Stand tall with elbows pinned to your sides and let your triceps move the bar alone. Leaning turns it into a bodyweight-assisted shove and robs the exercise of its point.
