Transversus Abdominus 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.


  • Front of the iliac crest
  • Inguinal ligament
  • Costal cartilages of the lower 6 ribs
  • Thoracolumbar fascia


  • Linea alba


  • Compresses the abdomen and supports the abdominal visera


  • Ventral rami of thoracic nerves
  • Ilioinguinal nerve
  • Iliohypgastric nerve

Daily uses

  • Maintaining good posture

How can I strengthen it?

Neck and Back Muscles:

More Human Muscles: