What is the primary function of the transverse abdominis (TVA)?

The primary function of the transverse abdominis (TVA) is to act as a corset to draw in the abdominal muscles. This muscle is crucial for core stabilization, functioning like a natural girdle that provides support to the spine and internal organs. By contracting, the TVA creates intra-abdominal pressure, which enhances stability during movement and protects the lower back, especially during activities that involve lifting or rotational forces.

The TVA plays a significant role in maintaining proper posture and balance, as well as in delivering strength to activities like lifting and bending. This stabilization is vital in both athletic performance and daily activities, making the TVA indispensable for overall core strength and functionality.