I'm doing this lower body hiit workout twice a week:
. I think my legs feel fatigued/heavy, I've felt like this for a few weeks or a month. I can still do the workout but my legs feel heavy. Before I start the workout my legs don't feel well rested or fresh. Do you think that workout is meant to done only once a week instead of twice? Maybe that workout is too hard or extreme or it could just be that I'm not at that fitness level.