My daughters like to do the P90X workouts with me, they count my sit ups, and sometimes they're my personal trainers. (my 10 year old does a cleaner languaged Jillian Micheals. LOL) They'll make up what I have to do -Push Ups, jumping jacks, sit ups.
My daughter has participated in Girls on the Run, where they train to run a 5k. So she and I will go out and jogging.
I also have used my daughters as weights. Hilarious, but it's a free 80lb weight and 50 weight.
Sorry that I rambeled. Just wanted to share.
*50 more pounds more to go before I can dress like Alison Sweeney*