This exercise is called Big Circles, probably self-explanatory. I like the medicine ball because it's strength-building but also gives you a nice stretch. We jumped rope in the a.m., then went for a x-country ski in the afternoon. My kind of day! And made all the better since I do believe Cara has caught the fitness bug.
Nothing in my experience causes more niggling injuries than running, so I'm sticking with my story regarding the lower impact of jumping rope. Not that I should admit to any of this, since I would like to take up running again in the spring. Cruising along on a dirt road with the music going--you can't beat it.
Keep jumping Alice. Maybe this summer we can have a family jump-a-thon up at the lake.