Are you underperforming every rep?

If you want to get bigger you need to learn to contract muscles properly, say IFBB Pro Ben Pakulski and top IFBB coach Kasem Hanson

Ben Pakulski is a IFBB Pro bodybuilder and creator of the Mi40 Xtreme training system and the Mi40 Nation website. He is based in Tampa, Florida.

Kassem Hanson is an elite contest prep coach, and trainer of IFBB pro Ben Pakulski. He is based in West Des Moines, Iowa.