these guys are known hit enthusiasts, so they have my attention.
any more details on the science they are talking about ?
or how their routines are set out etc
In a nutshell:
1 set to failure
short rest times (quick as possible)
super slow advocates (rep speed)
machine and free weight advocates (they lean towards machines, nautilus of course)
big five exercises for machines : seated row, chest press, pulldown, overhead press, leg press
big five exercises for free weights : bent over BB row, bench press, standing overhead press, squat, deadlift
choose 3 - 5 of these exercises and perform once per week, or split them twice per week as a starting point.
They advocate some accessory work (e.x. wrist curls, rotary work, calf raises, neck flexion/extension for football), and suggest and customise various routines for different sports
Stick to a rountine up to 12 weeks or until plateauing, then either increase rest times or change exercises