The margin of time that determines muscle building success or failure in the gym is a heck of a lot shorter than you might think. Just as fraction-of-a-second moments during a 100 metre dash will make or break a sprinter's race, fraction-of-a-second moments will also make or break your body's muscle growth response in the gym.
There's more...although each entire workout will last for about an hour, only about 60 seconds will determine what kind ...