Are RDL’s and good mornings interchangeable?

[Alexlarex]

I constantly see people in my gym doing both of this lifts. Is there any difference in terms of muscle activation?

[BeginnerGainz]

Good mornings, to me, work my posterior harder with a lot less weight.

RDLs never felt right to me.

[Brandon2576]

I think an RDL will work your upper body more than a goodmorning will. Goodmornings to me seem to be solely focused on the glutes and hamstrings and RDLs seem to be focused on the glutes, hamstring, and back.

[leidenesLK]

No difference regarding posterior chain activation. One difference is the stimulus to fatigue ratio - goodmornings provide the same stimulus with a lower weight, making them easier to program if you’re trying to manage fatigue.

RDLs have better carryover to your floor pulls because you work with a heavier load and have it in your hands. So with RDLs you get additional grip and trap work.

RDLs are generally easier to perform for most people than GMs, but otherwise they are very interchangeable.

[MyEgoProblem]

Providing you perform them the same (same knee angle ect like) they will be basically the same thing with 2 small differences.

1) gm will require less weight due to where the weight is loaded.
2) gm will challenge your tspine Errectors harder and rdl will challenge your mid traps harder due to to way your arms pull on your scaps.

Use both?
Either seperate days or rotate them in/out when you stall one or each block.

Currently on my lower days
L1) Squat - good morning - hack squat - ham curl
L2) dead - Zercher Squat - rdl - leg raise

I go gm after squat as the bar is set in J hooks Already 😂