
The 5x5 is known among bodybuilders and weightlifters for many years and is used by both old-school and the more "up to date" power lifters and bodybuilders.
Basic principles
In some variations it is recommended to start from 3x3 in other - the first two sets have a lighter weight, but warm-up sets don't count. In some variations the first session of the same exercise is heavy and then the second is 10-20% lighter (ie. squats on Monday are...