Some of the biggest talk I see on these forums is how Bro Splits suck because they dont offer enough frequency for each muscle group. Now Im not proponent of Bro splits, full body push pull exclusively. I am for whatever will get the trainee to be a trainee and not a sitting their ass on the couchee (Im sure thats a dirty word in a foreign language). But I think people are on glue or using extremely specific exercises if they think they are only hitting chest on chest day. To illustrate this i will write out the most basic bro split and the muscle groups included in each exercise.
Bench - Chest, Triceps, Shoulders
Incline Bench - Chest, Triceps, Shoulders.
Decline Bench - Chest, Triceps, Shoulders.
Pull overs or flys - Chest, Shoulders, Lats
Deadlift - every pull muscle plus quads
Db row - Back, rear delts, biceps
Pull downs - back, rear delts, biceps
back extension - lower back, glutes, hamstrings
CG Bench - Triceps, Chest, Shoulders
CG Chins - Biceps, Back, rear delts
Oh tricep extension - triceps, shoulders
BB curl - biceps
rope pushdown - triceps
Preacher curl - biceps…
I think you see where Im going with this and can fill in the rest. The only muscle group I can see jumping out is quads (depending on your deadlift style). The other muscle groups just have a primary mover day and sometimes very frequent secondary mover days. So is the cure to the frequency “issue” with bro splits to throw leg extensions on chest or back day. Or do people blow this out of proportion and the most important factor is hard work.