Strength Implant

Strength Implant is a Fallout: New Vegas perk.

Requirements
This is a special perk, which means that you can't just pick it when you level up. It's an implant named " Hypertrophy Accelerator " you can get from Doctor Usanagi in the New Vegas Medical Clinic for 4000 caps, designed to enhanced the muscle mass of the person it's installed in.