Does head posture have a significant effect on the hyoid bone position and sternocleidomastoid electromyographic activity in young adults?

Saúl Valenzuela, Rodolfo Miralles, María José Ravera, Claudia Zúñiga, Hugo Santander, Marcelo Ferrer, Jorge Nakouzi

Resultado de la investigación: Article

15 Citas (Scopus)

Resumen

The aim of this study was to evaluate the associations between head posture (head extension, normal head posture, and head flexion) and anteroposterior head position, hyoid bone position, and the sternocleidomastoid integrated electromyographic (IEMG) activity in a sample of young adults. The study included 50 individuals with natural dentition and bilateral molar support. A lateral craniocervical radiograph was taken for each subject and a cephalometric analysis was performed. Head posture was measured by means of the craniovertebral angle formed by the MacGregor plane and the odontoid plane. According to the value of this angle, the sample was divided into the following three groups: head extension (less than 95°); normal head posture (between 95° and 106°); and head flexion (more than 106°). The following cephalometric measurements were taken to compare the three groups: anteroposterior head position (true vertical plane/pterygoid distance), anteroposterior hyoid bone position (true vertical plane-Ha distance), vertical hyoid bone position (H-H′ distance in the hyoid triangle), and C0-C2 distance. In the three groups, IEMG recordings at rest and during swallowing of saliva and maximal voluntary clenching were performed by placing bipolar surface electrodes on the right and left sternocleidomastoid muscles. In addition, the condition with/without craniomandibular dysfunction (CMD) in each group was also assessed. Head posture showed no significant association with anteroposterior head position, anteroposterior hyoid bone position, vertical hyoid bone position, or sternocleidomastoid IEMG activity. There was no association to head posture with/without the condition of CMD. Clinical relevance of the results is discussed.

Idioma originalEnglish
Páginas (desde-hasta)204-211
Número de páginas8
PublicaciónCranio
Volumen23
N.º3
DOI
EstadoPublished - jul 2005

Huella dactilar

Hyoid Bone
Posture
Young Adult
Head
Cephalometry
Dentition
Deglutition
Saliva

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Dentistry(all)

Citar esto

Valenzuela, S., Miralles, R., Ravera, M. J., Zúñiga, C., Santander, H., Ferrer, M., & Nakouzi, J. (2005). Does head posture have a significant effect on the hyoid bone position and sternocleidomastoid electromyographic activity in young adults? Cranio, 23(3), 204-211. https://doi.org/10.1179/crn.2005.029
Valenzuela, Saúl ; Miralles, Rodolfo ; Ravera, María José ; Zúñiga, Claudia ; Santander, Hugo ; Ferrer, Marcelo ; Nakouzi, Jorge. / Does head posture have a significant effect on the hyoid bone position and sternocleidomastoid electromyographic activity in young adults?. En: Cranio. 2005 ; Vol. 23, N.º 3. pp. 204-211.
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abstract = "The aim of this study was to evaluate the associations between head posture (head extension, normal head posture, and head flexion) and anteroposterior head position, hyoid bone position, and the sternocleidomastoid integrated electromyographic (IEMG) activity in a sample of young adults. The study included 50 individuals with natural dentition and bilateral molar support. A lateral craniocervical radiograph was taken for each subject and a cephalometric analysis was performed. Head posture was measured by means of the craniovertebral angle formed by the MacGregor plane and the odontoid plane. According to the value of this angle, the sample was divided into the following three groups: head extension (less than 95°); normal head posture (between 95° and 106°); and head flexion (more than 106°). The following cephalometric measurements were taken to compare the three groups: anteroposterior head position (true vertical plane/pterygoid distance), anteroposterior hyoid bone position (true vertical plane-Ha distance), vertical hyoid bone position (H-H′ distance in the hyoid triangle), and C0-C2 distance. In the three groups, IEMG recordings at rest and during swallowing of saliva and maximal voluntary clenching were performed by placing bipolar surface electrodes on the right and left sternocleidomastoid muscles. In addition, the condition with/without craniomandibular dysfunction (CMD) in each group was also assessed. Head posture showed no significant association with anteroposterior head position, anteroposterior hyoid bone position, vertical hyoid bone position, or sternocleidomastoid IEMG activity. There was no association to head posture with/without the condition of CMD. Clinical relevance of the results is discussed.",
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Valenzuela, S, Miralles, R, Ravera, MJ, Zúñiga, C, Santander, H, Ferrer, M & Nakouzi, J 2005, 'Does head posture have a significant effect on the hyoid bone position and sternocleidomastoid electromyographic activity in young adults?', Cranio, vol. 23, n.º 3, pp. 204-211. https://doi.org/10.1179/crn.2005.029

Does head posture have a significant effect on the hyoid bone position and sternocleidomastoid electromyographic activity in young adults? / Valenzuela, Saúl; Miralles, Rodolfo; Ravera, María José; Zúñiga, Claudia; Santander, Hugo; Ferrer, Marcelo; Nakouzi, Jorge.

En: Cranio, Vol. 23, N.º 3, 07.2005, p. 204-211.

Resultado de la investigación: Article

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AU - Valenzuela, Saúl

AU - Miralles, Rodolfo

AU - Ravera, María José

AU - Zúñiga, Claudia

AU - Santander, Hugo

AU - Ferrer, Marcelo

AU - Nakouzi, Jorge

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