First things first. I’m new here. I’m 42, a former Division I hockey player, and was seriously out of shape by the time I hit 40! I started taking responsibility for by body again about a year and a half ago. Eating right and working out consistently. OK 'nuff of that.
I read in one of the coach’s articles here about strengthening core muscles to allow for a better “pillar” to support heavier bicep workout weights. While all of that makes sense to me, couldn’t the heavier weights also be accomplished by simply working isolation exercises that provide support (like preacher curls)?