Effects of tensioning the lumbar fasciae on segmental stiffness during flexion and extension: Young Investigator Award winner.

Study Design: Biomechanical study of unembalmed human lumbar segments.

Objective: To investigate the effects of tensioning the lumbar fasciae (transversus abdominis [TrA]) aponeurosis) on segment stiffness during flexion and extension.

Summary Of Background Data: Animal and human studies suggest that TrA may influence intersegmental movement via tension in the middle and posterior layers of lumbar fasciae (MLF, PLF).