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Table 2 Comparisons between type C and type S. The Mann-Whitney U comparisons of pro-directional end-range motion between type C and type S. Motion direction and joints for comparison are shown in rows one and two, rows three and four show the joint motion as a mean ± SD of type C and type S. aNo data available, insufficient sample size of one group

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

Flexion
 Joints C0/C1 C1/C2a C2/C3 C3/C4 C4/C5 C5/C6 C6/C7a
 Type C −4.2° (4.0°)   −5.1° (1.7°) −9.5° (2.4°) −11.0° (4.0°) − 11.9° (3.9°)  
 Type S −2.8° (2.1°)   −4.9° (3.6°) −5.4° (3.0°) −6.7° (4.1°) −9.3° (4.6°)  
 P 0.759   0.000 0.001 0.005 0.127  
Extension
 Joints C0/C1a C1/C2 C2/C3 C3/C4 C4/C5 C5/C6 C6/C7
 Type C   10.6° (3.2°) 6.2° (3.2°) 10.1° (3.9°) 11.1° (4.1°) 8.6° (3.9°) 7.8° (4.8°)
 Type S   6.4° (4.3°) 5.4° (3.5°) 6.08° (3.7°) 9.3° (4.6°) 8.4° (5.0°) 3.5° (2.0°)
 P   0.004 0.507 0.013 0.224 0.709 0.013
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Chiropractic & Manual Therapies

ISSN: 2045-709X