After a long bike ride, run, spinning class or any workout that taxes your lower body and legs here is the trick to being able to not feel like you have cement legs.
Lie on the floor with your legs up a wall or tree or whatever (with your butt against the wall/tree thing) and rub them from the ankle to the thigh (like wringing out a towel)and stay lying there for about 3 min. Then take a hotish bath with a cup of epsom salts if you have them and soak for at least 10 minutes. Tomorrow u will be able to walk. I am serious!
Soon I will work out how to hotlink the thing I talk about to places to buy the stuff.