Are warmup sets optimal for hypertrophy

[gcats3]

Because why when doing 2x failure did I get more reps on the second set then I did on the first? Do warmup sets allow for more optimised sets then

 

[Kaisdon]

I don’t use a warmup set but it’s valid if it works for you

 

[killuacel]

yeah i always feel stronger after i warmup as opposed to just going str8 into working set

 

[looks_minimizing]

For me, I'll only do warmups for workouts that need them. For instance during biceps, I do a warmup set for preacher curls but then I move straight to working sets for my next workout, hammer curls, because preacher curls already activate the brachialis enough. Similarly, if you're doing a lat pulldown into a seated close grip row, I'd say you don't need a warmup for the row, but definitely for the lat pulldown.