[en] Background: neck pain (DC) is one of the leading causes of disability both globally and nationally. Furthermore, forward head posture (FHP) has been identified as the most common postural attitude in the sagittal plane of the cervical spine, with controversy in the literature regarding its relationship with neck pain. Objetive: the main objective of this research is to check if there are significant differences in head and neck posture through the measurement of the craniovertebral angle (ACV) between young adults with nonspecific chronic neck pain (ScDCC) vs without neck pain (SsDCC). As a secondary objective, to measure the intra and interobserver realibility of the measurement of that angle between two novice physiotherapists; As well as the correlation between measurements of the CVA in sitting and standing position. Methods: observational, cross-sectional study with a comparative design between two subgroups, ScDCC and SsDCC, in which ACV was measured in sitting and standing position through photogrammetry. In addition, sociodemographic and anthropometric variables, prevalence of musculoskeletal pain (DME), pain intensity, general health status, level of physical activity, risk of DC progression, and degree of cervical disability were analyzed. Outcomes: SsDCC has not been found to have a decrease in ACV compared to SsDCC in the sitting (p=0,98) or standing posture (p=0,46). Interobserver reliability (ICC=0,98) and intraobserver reliability in sitting position (ICC=0,92 novel 1, ICC=0,93 novel 2) and standing (ICC=0,90 novel 1, ICC=0,92 novel 2) are almost perfect. Conclusions: there is no relationship between DC and craniocervical posture measured through ACV in both sitting and standing. The inter and intraobserver reliability in novice evaluators of ACV measurement, both sitting and standing, is excellent, demonstrating that this photogrammetric test is a good option for evaluating ACV by novice evaluators.

[gl] Introdución: a dor cervical (DC) é unha das principais causas de discapacidade tanto a nivel mundial como a nivel nacional. Asimesmo, identificouse a postura de cabeza adiantada (FHP) como a actitude postural máis frecuente no plano saxital da raquis cervical, habendo controversia na literatura sobre a relación de esta coa dor cervical. Obxectivo: o obxetivo principal desta investigación é comprobar se existen diferenzas significativas na postura da cabeza e pescozo a través da medición do ángulo craneovertebral (ACV) entre adultos novos con dor cervical crónica inespecífica (ScDCC) vs sen dor cervical (SsDCC). Como obxectivo secundario, medir a fiabilidade intra e interobservador da medición de dito ángulo entre dous fisioterapeutas noveles. Material e método: estudo observacional, transversal, cun deseño de tipo comparativo entre dous subgrupos, ScDCC e SsDCC, nos cales se mediu o ACV na posición bípeda e sedente a través de fotogrametría. Ademáis, analizáronse variables sociodemográficas, antropométricas, prevalencia da dor musculoesquelética (DME), intensidade da dor, estado de saúde xeral, nivel de actividade física, risco de progresión da DC e grao de discapacidade cervical. Resultados: non se atopou que ScDCC teñan una disminución do ACV en comparación a SsDCC na postura sedente (p=0,98) nin na postura bípeda (p=0,46). A fiabilidade interobservador (ICC=0,98) e intraobservador en sedestación (ICC=0,92 novel 1, ICC=0,93 novel 2) e en bipedestación (ICC=0,90 novel 1, ICC=0,92 novel 2) son case perfectas. Conclusións: non existe relación entre a DC e a postura craneocervical medida a través do ACV tanto en sedestación como en bipedestación. A fiabilidade inter e intraobservador en evaluadores noveles da medición do ACV, tanto en sedestación como en bipedestación, é excelente, demostrando que esta proba fotogramétrica é unha boa opción para evaluar o ACV por evaluadores noveles.