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Transversus Abdominus

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.

Origin

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

Insertion

• Linea alba

Actions

• Compresses the abdomen and supports the abdominal visera

Innervation

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

Daily uses

• Maintaining good posture

How can I strengthen it?

• Twisting crunches or sit-ups
• Core contraction exercises