So I have a potentially really stupid question. My understanding of weight-lifting has always been that essentially what is happening is you are subjecting muscles to trauma resulting in micro-tears that heal over time, resulting in hypertrophy (in extremely simple terms). However I keep reading that as a natty it is best to train a body part more than once a week due to protein synthesis being triggered for 24-48 hrs following training, which makes it sound like it’s more about triggering protein synthesis than the micro-tears to the muscle.
The reason I am here writing this is because I am looking at switching my program from working out a body part once a week, but really hard that one day a week, to multiple times a week with only a single exercise for that muscle group each time (essentially a push/pull program). What I can’t seem to understand is how doing a single exercise for a body part multiple times a week can be superior to beating the hell out of a body part once a week and the only sensible answer is that protein synthesis is everything, and the trauma to the muscles is less critical. Am I wrong with my understanding?
I’ve been working out hitting 1 body part a week to decent results for the last 1 1/2 years, but the gains have been of course slowing down. Any info anyone can provide would be appreciated.