Comparison of the Symmetry of Right and Left Lateral Cervical Flexion and Rotation and the Cervical FRR in Young Computer Workers

Won-Gyu Yoo, Won-Gyu Yoo

Abstract

[Purpose] This study compared the symmetry of right and left lateral cervical flexion and rotation, and the cervical flexion-relaxation ratio (FRR) in young computer workers in Korea. [Subjects and Methods] Twenty computer workers (14 males and 6 females) participated in this study. We measured their right and left lateral cervical flexion, rotation, and FRR. [Results] Right and left lateral flexion and right and left rotation showed no significant differences between the sides. The left cervical FRR was significantly lower than the right cervical FRR. [Conclusion] The cervical FRR, expressed as a numerical value, is a more sensitive marker for measuring neuromuscular changes associated with mild asymmetry than CROM.

Keywords: Cervical range of motion; Flexion-relaxation ratio; Muscle imbalance.

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Source: PubMed

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