Downloaded over 125k times, shared over 100k - this is THE #workout to do if you're looking to put on some muscle mass. Dedicate the next 10 weeks to this 4 day split that's designed to work each muscle group HARD once a week, using compound exercises: h

Downloaded over 125k times, shared over 100k - this is THE #workout to do if you're looking to put on some muscle mass. Dedicate the next 10 weeks to this 4 day split that's designed to work each muscle group HARD once a week, using compound exercises: https://muscle.ms/10WeekMass-Pro  pic.twitter.com/Lw9gSKf0k2

Source: https://twitter.com/Muscle_Strength/status/1055182565508894720