Pump Up Your Push Ups!

Looking for a way to take push ups to higher level? Try placing your feet on a ball! This will increase the difficulty of the push up as your centre of gravity will now be higher than if your feet were on the ground. Also, the unstable nature of having your feet on a ball will require greater core strength & control and also help with your balance!
(Photos courtesy of http://www.hfpn.com/)