Getting closer to the season so it is good to do sport specific training. It is good to train your Anaerobic lactic muscle system. That is a work out in duration from 45 to 120 seconds, 3 times per week. Kind of like the length of a ski race. You could do 400m to 600m sprints. 3 to 5 sets. A good way to do it is always warm up jog and stretch first. Have a light sweat going. Then sprint one lap walk a lap to recover and repeat.
Another is try M 100's a great work out in your house again while watching tv. If you have the room to move safely that is. I tried them. Good wok out!