Do You Struggle Gaining Weight? Building Muscle? -I usually never see examples of 5 day splits out there, so I figured I'd conjure this one up for you guys.-The 5 Day split is split up into 2 strength days and 3 hypertrophy days. This is a great split because it allows you to hit every muscle 2 times a week, which is great frequency for muscle building! Check out this great workout guaranteed to give you gains!