Blake | Posture, Mobility, Muscle Imbalances, & Holistic Health on Instagram: "It might not be body fat or gut issues… it could be a weak Transverse Abdominis (TVA) which is one of your deepest core + breathing muscles. - The TVA acts like your body’s natural weight belt. When it’s weak, you can see rib flare, pooch belly, poor posture, and often times low back issues. - Isometric stomach vacuums are ok, but they don’t teach the TVA when to fire properly which is during exhalation. - Pairing TVA