What is the recommended cervical flexion angle for C1-C5?

The recommended cervical flexion angle for C1-C5 is indeed 0-5 degrees. This angle reflects the anatomical position and kinematics of the cervical spine, particularly for the upper segments such as C1 (the atlas) and C2 (the axis). In this range, cervical flexion is minimal and is primarily associated with the nodding motion of the head, which is essential for maintaining proper alignment and avoiding excessive stress on the cervical structures.

Research in biomechanics emphasizes that the cervical spine should maintain a neutral or slightly flexed position to optimize function and stability while minimizing strain on the surrounding muscles, ligaments, and neural structures. The more significant angles of flexion seen in other options pertain to lower cervical segments or involve combined movements that may not be suitable for the upper cervical region.

Maintaining this recommended angle is crucial in therapeutic settings, surgical planning, and rehabilitation programs, as it encourages safe mobility and reduces the risk of injury or exacerbation of existing conditions. Understanding this angle helps practitioners in designing effective treatment plans and providing proper guidance to patients concerning posture and movements related to the cervical spine.