@drwendy_physicaltherapy: I know you want a smaller waist so you started doing side planks, LOTS of side planks. Here’s the problem: the over use of your obliques is WIDENING your waist. The internal oblique muscles are causing the lower ribs to flare out due to their strong pull on the rib cage. Your obliques are working too hard compared to other muscles of the abdomen leading to a flared rib cage appearance. I suggest a variety of ab exercises, even the curl up because your rectus abdominis is so weak. Even your hip flexors are weak! So your internal obliques are overactive compared to the transverse abdominis and external obliques, it can pull the ribs upwards and outwards, causing the flare. #abrehab #abdominales #abexercises #diastasisrecti #obliques