I'm not sure there is a right answer here. The only muscles I work twice a week are legs. Everything else is always once a week. I am in no rush and have always enjoyed giving smaller muscles like chest a full week to rest and repair. Technically I know I can probably go every 5 or 6 days but I never saw the point.I've been having countless discussion with my mate about our workout procedures and such.
I usually workout 6 days a week with a 3-day rotation. 1st day chest/triceps, 2nd day back/biceps, 3rd day shoulders, legs, abs and then one day pause.
Every 3-day rotation I do different types of exercises, for example I do chest with dumbells one day but chest on machines or barbell another day. Just to avoid getting bored that is. My pal is telling me that this isn't a good idea as my muscles isn't getting the needed stimulation from the continous exercise over several weeks and months. Or something like that...
Any comments on that ? And if you have any tips for me you're also very welcome.
Thanks.