I have problems with muscle tension. It's part of the cause (the other being overuse) of chronic tendinitis in my hands and muscle pain in my forearms.
As far as alpine skiing, my quads and hip flexors get some pain and soreness afterwards. In the past it has been because of being in the backseat, but recently I started pulling the inside foot back, and that seems to be enough to cause soreness in my quads. I don't do cross-country skiing very often, but I did last weekend, and even five days later, my hip flexors are still a little sore.
So I don't know if the muscle tension is to blame, or if it's just conditioning. I've skied every weekend this season, I walk quite a lot during the week, and I also stretch my quads and hip flexors every morning, holding for about 15 seconds.
What's the deal with compression clothing? Would that do anything?