Impact of Isometric Contraction of Anterior Cervical Muscles on Cervical Lordosis.

Objective: This study investigates the impact of isometric contraction of anterior cervical muscles on cervical lordosis.

Methods: 29 volunteers were randomly assigned to an anterior head translation (n=15) or anterior head flexion (n=14) group. Resting neutral lateral cervical x-rays were compared to x-rays of sustained isometric contraction of the anterior cervical muscles producing anterior head translation or anterior head flexion.