http://www.ncbi.nlm.nih.gov/pubmed/23537028" onclick="window.open(this.href);return false;
It's not something i've actively looked for research on so i have no idea if there's anything to contrary.Therefore, this study showed that the inclusion of SJ (single joint) exercises in a MJ (multi joint) exercise training program resulted in no additional benefits in terms of muscle size or strength gains in untrained young men.
I guess the reason I felt compelled to post is because it actually agrees with what I believe.
I've went from, "YOU MUST TRAIN YOUR ARMS OR YOU WILL NEVER LOOK LIKE YOU LIFT" to, "direct arm work is a complete waste of time", and then to my more recent opinion - "why not just do direct arm work?"
When I train beginner males, I always include arm work. I do this not because I believe it has any benefit but, because that's what beginner males want. In other words, I include it for sales/custoemr services purposes, not because I think it actually helps.
And, to be honest, it's just convinved me that it doesn't actually help.
Bare in mind you shouldn't be a beginner for very long. Then things change. However, we're just talking about beginners here.
Most of the arguments i hear are things like, "your arms will be under developed".... So what? Something needs to be underdeveloped.
"here's a training program that creates equal growth in every single muscle in your body, enjoy" - said by no bodybuilder or coach, ever.
So, if I shy away from taking the easy-life route, my opinion is yes, direct arm work and the majority of isolation work is a waste of time for the complete beginner.
Lets give the dead horse another beatin'