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Table 6 Maximum demonstrated motion. The maximum demonstrated flexion and extension motion in degrees

From: The global end-ranges of neck flexion and extension do not represent the maximum rotational ranges of the cervical intervertebral joints in healthy adults - an observational study

  C0C1 C1C2 C2C3 C3C4 C4C5 C5C6 C6C7
Flexion 17.7 19.4 15.6 12.8 20.4 18.6 18.3
Extension 26.7 21.2 14.6 18.0 17.8 19.4 16.3