I think Marion's advice is pretty flexible - he sort of stresses to do what you feel capable of handling in terms of days per week. If you're in your teens or early twenties for example, your recovery time will probably be such that volume of that type would be ideal.
I have to disagree somewhat with Rev's logic, but not necessarily his conclusion - In Phase 1, doing each workout once totals 40 sets, so each workout twice (6 workouts) would be 80 total sets. The other phases require much higher volume of sets per workout. For example, doing each workout on Phase 2 once in a week would be 96 sets - I seriously question doing more than that. It's a huge amount of volume, no doubt about it.
So, just see what works for you - again, Marion's advice is to work out if you feel like it, and don't let any artificial constraints keep you out of the gym - but he stresses that you shouldn't force yourself to the gym if you don't feel like it.
|