I need something to increase athletic Performance and muscle mass without taking away from my aerobic performance
Why would you think anabolics will hinder aerobic performance? Well actually i could see sd induced calf pumps slowin ya down in a run i guess. Anavar maybe, or a sarm, theres ostarine logs where the users claim increases in endurance, s-4 if you can deal wit sides idk id say var tho.
exercise is great for this!
"If you want to impress me, build a 20-inch arm with a 20-pound dumbbell."~Dan Duchaine
SNS REP, Precision Nutrition Lvl 1, NSCA CPT