Investigation the Effect of Rectus Abdominis and Erector Spinae Muscle Fatigue on the Viscoelastic Properties of Thoracolumbal Fascia

The rectus abdominis, which enables the trunk to flex with its activation, and the erector spinae muscles, which provide trunk extension with its activation, are among the structures located in the core region and involved in the stabilization of the spine. While the muscles in the core area actively provide the stabilization of the medulla spinalis, this stabilization is also supported by passive subsystems. Passive subsystem fascia etc. creates structures. Thoracolumbar fascia is one of the important fascias due to its connections with the muscles in the core area. Fatigue etc. of the structures in the core area. As a result of physiological processes, their functionality may decrease, which may affect the stabilization of the core area. Fatigue occurs as a result of lactic acid accumulation in the structures in the body and this process is called the recovery period. The types of exercises performed also affect the recovery period. For this reason, different exercise types such as dynamic and static can be used when creating exercise programs. Due to the functions of the rectus abdominis and erector spinae muscles and thoracolumbar fascia in the body, their effects on the spine and their connections with each other; It is aimed to examine the effect of muscle fatigue in these muscles on the viscoelastic properties of the thoracolumbar fascia and their recovery rates.