: #Core #Abs - It's the simplest exercises that burn the best sometimes.. It may not look like it, but let me tell you, 🔥🔥🔥 - I was in the mood for the balance ball this morning.. Roll outs to knee to elbows. Be sure you are engaging that core, keep your back straight and that booty down! #Fitspirationbyprissy #Getyousome