For starters i'm 5'11 & 170 lbs at approx. 12% bf. i'm using a 5 day a week split w/ strength on Monday/Tues and volume on Thurs/Fri and Wed is off/abs. i've been trying to include running into my training w/ about half an hour a day, and it KILLS my lifting. Does anyone have any tips on including running in a weight regimen? As well, can anyone suggest ways of still keeping muscle aside from eating a lot?
side note: i'm not one of those skinny assholes who wants better abs, i like to hike so i'm running purely for cardiovascular endurance.