Does getting stronger in the glute ham raise help you to get stronger in deadlifts?
Quite a few strength coaches prescribe the glute-ham raise as a deadlift assistance exercise, but I honestly can’t see how a knee-flexion exercise would get you better at hip extension (deadlifting). How does that work?
Also, if someone has a beastly glute-ham raise, eg. they can do 12 reps ‘natural’ (ie. not on a machine) glute ham raises - do they necessarily have a strong posterior chain? I don’t think so.