I've been fairly physically inactive this week and have gotten in virtually no low or high-intensity aerobic exercise. I'm concerned that this is becoming a pattern and that my resting HR is on the rise.
Yesterday I had a terrific lifting day of deadlifts, bench presses and rows and I'm (happily) feeling it today.
Is it counterproductive to my muscle-repair to get my HR up by doing bike or treadmill sprints for around 15 hard minutes or to do a mild 35-45 minutes on the elliptical today? At the same token, is it a bad idea to work different body parts on sequential days? (Often my 18-year old brother is interested in doing the latter, but I usually opt against it for fear of hindering my strength gains. I would never lift the next day after a day like yesterday, but would consider it, though, if I did not feel sore or tired).