Table 2. Intrarater reliability of cervical extensor muscle measurements by the novice and the experienced rater.

CSA, cross-sectional area; FCSA, functional cross-sectional area; ICC, intraclass correlation coefficient; CI, confidence interval; SEM, standard error of measurement; MF, multifidus muscle; SCER, semispinalis cervicis muscle; SCAP, semispinalis capitis muscle; SPL, splenius capitis muscle.