These days more dads are trading in their office jobs for a stay-at-home parenting gig. While looking after Junior might seem like a sweet deal, it doesn’t leave a lot of time for personal fitness. Or does it?

Here we see the hidden fitness potential of your young charges. Who needs a gym?

Toddlers make great weights, and they add an extra challenge to your push-ups. Downsize to a newborn and you’ve got a weight for arm curls and sit-ups. Between the pair of them, your fitness regime is organized!

You new buff bod will be the biggest reward, but keeping the kids amused in the process is a handy bonus!