Portal de Periódicos da CAPES

Effect of Deep Neck Flexor Performance on the Stability of the Cervical Spine in Subject With and Without Neck Pain

2011; Volume: 18; Issue: 4 Linguagem: Inglês

2287-982X

Oh-Yun Kwon, Won-Hwee Lee, SungDae Jung, Si‐Hyun Kim, Do-Heon Jung,

Shoulder Injury and Treatment

This study compared the stability of the cervical spine according to the presence of neck pain and deep neck flexor performance. Thirty subjects with neck pain, and thirty subjects without neck pain were recruited for this study. The Cranio-cervical flexion (CCF) test was applied using a pressure biofeedback unit to classify the subjects into four subgroups; no cervical pain and good deep neck flexor performance (NG group), no cervical pain and poor deep neck flexor performance (NP group), cervical pain and good deep neck flexor performance (PG group), and cervical pain and poor deep neck flexor performance (PP group). The head sway angle was measured using a three-dimensional motion analysis system. A 3-kg weight was used for external perturbation with the subject sitting in a chair in the resting and erect head positions with voluntary contraction of the deep neck flexors. A one-way analysis of variance (ANOVA) was performed with a Bonferroni post hoc test. The deep neck flexor performance differed significantly among the four groups (p