Hi, I just recently started structured training. I have been doing a lot of base work “running” yesterday I went to go for a quick ski tour though and found I was unable to keep my heart rate below my AET without completely stopping every couple steps. Running I can decrease my pace enough to maintain my target heart rate but on a steep skin track it was impossible to maintain. What advice do you guys have? Do I need to just do more flat training and running to build my aerobic base before touring?