How can I lean out and build/maintain size in my upper body at the same time?
I've started running (although I hate it) because I really want to lose my jiggle butt. My upper body was making great progress but since I've been running I've lost size in my arms. Diet hasn't changed much- little more carbs and plenty of protein.
I we spending 85 percent of my gym time with weights but I was getting a bit too bulky. Now with more of a 50/50 split, I am leaner but losing size.
How can I keep building size while staying lean? Feels like a bit of a yo yo effect. Thanks for any suggestions