Transversus Abdominis is often abbreviated to TVA. This is a very important core muscle which is vital in maintaining good posture. Activities such as Pilates focus on contraction of the TVA.
Origin : Front of the iliac crest.
Costal cartilages of the lower 6 ribs.
Insertion : Linea alba.
Actions : Compresses the abdomen and supports the abdominal visera.
Innervation : Ventral rami of thoracic nerves.
Daily uses : Maintaining good posture.
Example exercises : Core contraction exercises.
Related injuries : Lower back pain.