I have to with side delts.....
It wasnt until I used pre-exhaustion (doing 8 sets of dumbell laterals before the heavy presses until I was able to bring m out a bit....
I guess I use too much arm power for the presses
Also training side delts 3 times a week rendered reasonable results (For me this is not overtraining as they are obvisiously noy heavyly taxed by chest/back workouts
Tris on the other hand grow like weed. For those who voted triceps:
Training arms only once a week (or even less!) works great for me as long as I do heavy compound exercises on the other days.
Also when you finally work arms directly have an exclusiove bi-tris day. My arms are nearly always shocked on that day.
Triceps seem to respond much better to higher reps than most other muscles of the upper body. After doing two sets (10-8) reps I do one final set of 25 reps! I do this for each exercise. I don't care if some HIT advocate says that 25 reps is just lactic acid buildup or glycogen depletion. It just flatout workz for me (might be an individual thing, but i got this method from another guy with really huge hanging triceps)
Also, "slice" your exercises on arms day. Meaning doing 3-4 sets of a triceps exercise followed by
3-4 sets of a biceps exercise
3-4 sets of a triceps exercise
3-4 sets of a triceps exercise
etc..
You keep arms flooded with blood while still you have a few minutes break between two triceps exercises allowing you to keep putting in hard work.
A nice slice, starting with solid heavy exercises first:
TRI: california presses
BI : weighred reverse grip pullups
TRI: weighted dips
BI : dumbell curl
TRI : some overhead exercise (db, bb, cable)
BI : scott curl
TRI : pushdowns
BI : BB curl
TRI: some dumbell or cable kickbacks
BI : some dumbell concentration curl or cable curl to head or standing cable curl
This should kill them for a week!
