How bout this for theory…
Muscles that Push (bench press, Military press) Dont pull- and muschles that Pull (rows, bicep curls) dont push.
And since your muscles grow while your resting it would only make sense to caterigorze them that way.
Push- Bench Presses, military press, tricep extension, dips, etc.
Pull- Rows, Deadlifts, Upright Row, DB Row, Lat Pull Downs, Pull up
That way you have a total of 72 hrs while your muscles are resting. [/quote]
Following that logic to the extreme, people who never do anything should have the largest muscles because all they ever do is rest.
In truth, muscles grow while you are resting, but they only do so in response to stimulus. More to the point, they do so in response to chronic stimulus; if you blast your bis, or whatever, once, and then never look at them again, your body is going to say “that sucked, let’s repair that muscle.” If, however, you hit the same muscle with greater frequency, the body is going to say “that sucked, let’s grow that muscle so we can handle the stress.” That is why progressive resistance is so key.
The body will only respond so much to a given stimulus. If you hit a muscle once a week, it will respond to that stimulus, then stop growing. The rest of the time you are resting is simply lost time.
On the other hand, the body can only recover so much in a given time. If you hit a muscle every day and never give it a chance to recover, it won’t grow at all, or at least it will grow sub-optimally.
The trick is to bring these two into balance; do as much work as your body can recover from, let it recover, and then start all over again.