STRAIN/COUNTERSTRAIN ON INTERNAL PTERYGOID MUSCLES. SHORT-TERM EFFECTS ON MANDIBULAR DYNAMICS

Authors

  • C Rodríguez Blanco Fisioterapeuta. Licenciado en Kinesiología y Fisiatría. Profesor Colaborador. Departamento de Fisiotera- pia. Universidad de Sevilla. Sevilla. España Author
  • J Rebollo Roldán Fisioterapeuta. Doctor en Pedagogía. Catedrático de Fisioterapia. Departamento de Fisioterapia. Universi- dad de Sevilla. Sevilla. España Author
  • D Torres Lagares Odontólogo. Doctor por la Universidad de Sevilla. Profesor Ayudante Doctor. Departamento de Estomato- logía. Universidad de Sevilla. Sevilla. España Author
  • P V Munuera Martínez Podólogo. Doctor por la Universidad de Sevilla. Profesor Colaborador. Departamento de Podología. Universidad de Sevilla. Sevilla. España Author

Keywords:

strain/counterstrain, myofascial pain syndrome, mouth, bite force, muscle hypertonia, temporomandibu-lar joint.

Abstract

 Objective: to assess the short-term effects on mandibular dynamics (in terms of jaw opening and bite force) of the ap-plication strain/counterstain (SCS) on latent myofascial trigger points (MTrPs) of the internal pterygoid muscles. Intervention: forty-nine subjects, 25 males and 24 females, were randomly allocated to one of two groups: experimental (25 subjects), who received SCS therapy, and control (24 subjects), who received a placebo treatment. As outcome variables, we considered maximum active jaw opening and maximum bite force. Results: the results showed a significant improvement with respect to active jaw opening [controls: (–0,02) mm ± 0,76; experimental subjects: 1,48 mm ± 1,3; p< 0,01] and maximum bite force [controls: (–0,06) N ± 1,21; experimental subjects: 32,43 N ± 16,81; p< 0,001] after treatment of MTrPs with SCS. Conclusions: our results suggest that muscular inhibition methods through the application of strain/counterstain (SCS) could be used in the treatment of the MTrPs of the internal pterygoid muscles in order to improve maximum jaw opening and maximum bite force.

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Published

2008-04-30

Issue

Vol. 37 No. 2 (2008): Year 2008, Volume 37 Issue 2

Section

Original

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How to Cite

Rodríguez Blanco, C., Rebollo Roldán, J., Torres Lagares, D., & Munuera Martínez, P. V. (2008). STRAIN/COUNTERSTRAIN ON INTERNAL PTERYGOID MUSCLES. SHORT-TERM EFFECTS ON MANDIBULAR DYNAMICS. Cuestiones De Fisioterapia, 37(2), 08-14. http://cuestionesdefisioterapia.es/index.php/cf/article/view/309