## 3 Results  
Of the 81 eligible participants who agreed to participate, 70 were included in the study. The reasons for exclusions were concomitant headache (\(n\) = 7), receipt of an anesthetic block in the previous 3 months (\(n\) = 2), and a history of previous neck trauma (\(n\) = 2).  
Table 1 summarizes the demographic and clinical features of the sample population. A total of 75.7% of participants reported neck pain, 78% of patients presented severe migraine-related disability according to the MIDAS score, and approximately 67% of the sample reported depressive symptoms. During the cervical ROM assessment, the proportion of participants that reported neck pain during movement was 41.4% for the sagittal plane, 45.7% for the frontal plane, and 42.9% for the transverse plane (Figure 2).  
The correlation analysis revealed weak negative associations between PHQ-9 score and cervical ROM in all planes (Table 2, Figure 3); the higher the depressive symptoms, the lower was the cervical ROM. No significant associations between cervical ROM and migraine pain features, self-report of neck pain, neck pain during cervical movement, neck pain features, kinesophobia, neck pain disability, and migraine-related disability were observed (Table 2). The correlation analysis performed considering only the individuals who reported neck pain also revealed no significant associations between cervical ROM and neck pain disability, neck pain frequency, and neck pain intensity (Table 3).  
Figure 1: Illustration of the subject’s position in the Multi Cervical Rehabilitation Unit® performing the cervical range of motion assessment on the sagittal plane (**A**), frontal plane (**B**), and transverse plane (**C**).  
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline  & \multicolumn{5}{c}{**Migraine (\(n\) = 70)**} \\ \cline{2-5}  & **Mean** & **Median** & **SD** & **Q1–Q3 Range** & **N (\%)** \\ \hline Age, years & 33.47 & 31.00 & 9.27 & 27.00 to 39.25 & \\ BMI, kg/cm\({}^{2}\) & 23.99 & 23.57 & 3.62 & 21.14 to 26.21 & \\ \hline \multicolumn{5}{c}{Clinical features} \\ Migraine onset, years & 15.81 & 14.50 & 9.57 & 8.00 to 20.50 & \\ Migraine frequency, days/month & 14.48 & 12.00 & 9.74 & 5.75 to 21.00 & \\ Self-report of neck pain & & & & 53 (75.7) \\ Neck pain frequency, days/month & 12.20 & 10.00 & 11.33 & 0.75 to 20.00 & \\ Neck pain intensity, NPRS & 4.31 & 5.00 & 3.08 & 0.75 to 7.00 & \\ \hline MIDAS score & 57.41 & 45.00 & 48.69 & 22.00 to 77.75 & \\ No disability & & & & 5 (7.1) \\ Mild disability & & & & 2 (2.9) \\ Moderate disability & & & & 8 (11.4) \\ Severe disability & & & & 55 (78.6) \\ \hline NDI score & 10.88 & 12.00 & 8.54 & 0.00 to 17.00 & \\ No disability & & & & 20 (28.6) \\ Mild disability & & & & 26 (37.1) \\ Moderate disability & & & & 20 (28.6) \\ Severe disability & & & & 4 (5.7) \\ \hline PHQ score & 8.55 & 8.00 & 5.77 & 4.00 to 12.00 & \\ Minimal depression & & & & 23 (32.9) \\ Mild depression & & & & 19 (27.1) \\ Moderate depression & & & & 17 (24.3) \\ Moderately severe & & & & 7 (10.0) \\ depression & & & & 4 (5.7) \\ Severe depression & & & & \\ \hline TSK score & 37.44 & 38.00 & 8.84 & 30.00 to 43.25 & \\ \hline \multicolumn{5}{c}{Cervical range of motion} \\ Sagittal plane, degrees & 109.67 & 111.50 & 15.04 & 100.00 to 117.25 & \\ Frontal plane, degrees & 92.50 & 93.50 & 16.15 & 82.75 to 104.00 & \\ Transverse plane, degrees & 128.51 & 130.00 & 22.08 & 117.00 to 145.00 & \\ \hline \multicolumn{5}{c}{BMI: body mass index; NPRS: numerical pain rating scale; NDI: Neck Disability Index; MIDAS: Migraine Disability Assessment; PHQ: Patient Health Questionnaire; TSK: Tampa Scale for Kinesiophobia; SD: standard deviation.} \\ \end{tabular}
\end{table}
Table 1: Sample clinical and demographic characteristics.  
Figure 2: Self-reported neck pain during cervical motion in the three planes of motion.