How can we create the damage and nastiness required for a productive leg workout while sparing our backs?

A cluster 6-second pause execution as Dr. Serrano demonstrates with patients in the video combines to create excellent conditions for muscle growth and body fat loss at the same time.

You want debate? Go to a powerlifting meet and ask the lifters in the warm-up room if you should be focusing on your quads to build your squat. You’ll hear a lot of opinions. Who’s right?