This is a weird one: after restarting strength training, my legs feel heavy on the bike, especially on the first interval. Usually, they feel much better and the last interval feels better than the first. My cardiovascular system is not maxed out at the moment, though, as I can see from heart rate recovery figures (= time it takes until heart rate reaches <= 129 bpm). Today they have been under 1:15 for all 4 intervals of Mount Baldy +1, which for me is really great. Just looking at heart rate recovery, I’d say my workout was way too easy. But even during harder workouts that go into VO2max territory, they stay under 2 minutes.
Still, my legs feel uncomfortably heavy, and it takes more out of me mentally to finish work that should feel a bit easier than it does. Is there anything I can do to mitigate that a bit? Should I extend my warmup? Should I go easier on the strength workouts? Should I decrease intensity or volume?