Overall best work-out

[Fairfax_Uechi]

Running is absolute anathema if you are seriously trying to build muscle, as the pounding you take when running can cause muscle breakdown.

Actually this is a myth, and if you do some research on modern body building techniques you'll find out that running can complement strength training to get a really ripped body.

Now, if you simply do running either right before or after weight training without a good rest period (typically 8 hours or more) what you say is very true. Muscle breakdown occurs when you start the muscles. Properly fed, and with enough recovery time, intense cardio can actually help build muscle as it optimizes the cardio system which helps in the delivery of oxegen and nutrients to the muscles.