I do heavy everything....my core trining consists of flat benh and incline with no dumbells, just the straight bar...squats...and deads..i do alternating dumbell curls and straight bar curls as well as preachers...i vary the schedule up a bit also, and days, i work all the muscles, but to grow and blow up my strength, i do the above...but i do not neglect isolating muscles either...
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