Believe it or not, if you're following the phases of the year and planning out fitness goals to be fit for skiing, this week marks the final week of the year and is stil considered a recovery or transition microcycle. Focus on volume of aerobic sessions while slightly increasing the intensity level. In other words, do something aerobic 4 or 5 days per week but push yourself a little harder. Don't forget floor exercises to build back strength in the core while stretching vulnerable areas like hip flexors, quads and hamstrings. I find that using a foam roller or even tennis ball helps to break up tight muscles around the hip joint.