Grab a protein shake, add some creatine and settle in as the boys step you through the evidence-backed methods to gain lean muscle.

Plus, Bart answers the most frequently asked questions on gaining muscle including:

• How do I train my abs to get a 6 pack?
• And, is it safe to keep doing overhead movements if my shoulder hurts?

Links & Additional Resources

• Muscle Hypertrophy
• Set Volume for Muscle Size
• Pull Up Video