The sad thing about skating and leg workout training is that so much of that happens during someones youth. There is only a limited amount of impact you can have by practicing those things later in life, which is quite depressing. Sure, in every sport a lot of the athletic foundations are picked up when people are growing up and learning the sport in the first place, but nowhere is it quite as pronounced as with Skating. You need to get the technical fundamentals of it ingrained in yourself early on, because it is so different from the "normal" running that most other team sports are based on. But of course there are still things you can do later in life. Sadly, bag skates are a very efficient way to work on the pure strength and athleticism aspects of your skating. It's a grind, but a necessary one, you only really improve in that area by solely focusing on the physical aspect of it, so for much of it you can just toos your stick away.