Electromyographic Effects of Postural Correction Exercises in Individuals With Forward Head Posture
Electromyographic Changes in Masticatory and Cervical Muscles Following a Structured 10-week Postural Correction Exercise Program in Individuals With Asymptomatic Forward Head Posture: A Randomized Controlled Trial
This study investigates the effects of specific corrective exercises on EMG of masticatory and cervical muscles in individuals with forward head posture. The study's design will be a retrospective, double- blinded, randomized controlled trial. The participants will be randomly allocated to one of two groups: the exercise group and the control group. The training groups will perform a program consisting of two strengthening (deep cervical flexors and shoulder retractors) and two stretchings (cervical extensors and pectoral muscles) exercises. This exercise program will be repeated 4 times per week for 10 weeks, and each session lasted 30 minutes.
The pre/post assessment of forward head posture will measure by using craniovertebral angle CVA. While the muscle activity EMG of the masseter, temporalis, splenius, upper trapezius, and SCM will measure pre and post-assessment using a biopic data acquisition system.
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Descripción detallada
Forward head posture (FHD) is a common habitual faulty posture exists in the surrounding that can alter the resting position of the mandible and may affect the masticatory muscle activity.
The aim of this study is to investigate the effect of postural correction on masticatory and cervical muscle activity and mandibular opening in forward-head posture patients.
Materials and Methods:
Cranio-vertebral angle measurement CVA EMG activity of masseter, temporalis, splenius, upper trapezius and SCM BAU - Institutional Review Board (Form H-II) | BEIRUT ARAB UNIVERSITY
-Electrodes will be placed on the muscle belly parallel to the direction of muscle fibers. The distance between the two electrodes was 2 cm. The subjects will be instructed to complete maximum voluntary contraction (MVC) of clenching the teeth for 3 s and repeating twice. The average of the two trials of MVC will be used for further analysis. The subjects will be seated comfortably in a chair.
Tipo de estudio
Inscripción (Estimado)
Fase
- No aplica
Contactos y Ubicaciones
Estudio Contacto
- Nombre: Ahmed M Elsayed, PhD
- Número de teléfono: 00201027943622
- Correo electrónico: ahmed.elmelhat@cu.edu.eg
Copia de seguridad de contactos de estudio
- Nombre: Ahmed El-Melhat, PhD
- Número de teléfono: 0096181437072
- Correo electrónico: a.melhat@bau.edu.lb
Ubicaciones de estudio
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Beirut, Líbano
- Reclutamiento
- Physical therapy outpatient clinic
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Contacto:
- Ahmed ElMelhat, PhD
- Número de teléfono: 00201027943622
- Correo electrónico: ahmed.elmelhat@cu.edu.eg
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
Acepta Voluntarios Saludables
Descripción
Inclusion Criteria:
- 1. Participants aged 18- 30 years. 2. Presence of forward head posture, defined as CVA of less than 50° with no symptoms of neck pain [18, 19]. 3. No treatment for TMD or cervical symptoms (e.g., medication, physical therapy, or intra-articular injection) within the previous 2 weeks.
Exclusion Criteria:
1. Current or previous diagnosis of temporomandibular disorder (TMD), or the presence of TMD-related signs or symptoms (e.g., joint sounds, restricted mouth opening, or orofacial pain) during screening.
2. History of TMJ subluxation or dislocation that could interfere with mouth opening.
3. History of recent head or neck trauma. 4. Angle Class II or Class III malocclusion. 5. Postural abnormalities secondary to structural spinal deformities (e.g., scoliosis or kyphosis), rheumatic diseases, or other medical conditions affecting posture.
6. Missing posterior teeth, recent orthodontic treatment (within the previous 12 months), or dental restorations that altered occlusion.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Doble
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
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Experimental: Specific strengthening and stretching exercise
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El programa consistió en dos ejercicios de fortalecimiento (flexores cervicales profundos y retractores de hombros) y dos ejercicios de estiramiento (extensores cervicales y músculos pectorales) basados en el enfoque de Harman y Mostafa et al.
Este programa de ejercicios se repetirá 4 veces por semana durante 10 semanas y cada sesión tendrá una duración de 30 minutos.
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Comparador activo: General exercises
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El programa consistirá en ejercicios posturales generales regulares, como ejercicios de conciencia postural, así como ejercicios generales de fortalecimiento, como ejercicios de rango de movimiento para el cuadrante superior.
El programa también se repetirá 4 veces por semana durante 10 semanas, cada sesión durará 30 minutos.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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EMG activity
Periodo de tiempo: 10 weeks
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Electrodes will be placed on the muscle belly parallel to the direction of muscle fibers. The distance between the two electrodes was 2 cm. The subjects will be instructed to complete maximum voluntary contraction (MVC) of clenching the teeth for a period of 3 s and repeated twice. The average of the two trials of MVC will be used for further analysis. The subjects will be seated comfortably in a chair (---cm height). |
10 weeks
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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craniovertebral angle
Periodo de tiempo: 10 weeks
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Forward head posture will be assess by the craniovertebral angle, one of the most reliable tool for evaluating the FHP. The examiner takes 2 lateral photographs of the subject in standing position, according to Shaghayegh fard et al. A digital camera will be positioned on a tripod at a distance of 0.8m from the subject at shoulder height. Two land mark will be taken, the spinous process of C7 and the tragus of ear. A horizontal line will be drawn passing through C7 making a right angle with the vertical. Then, the angle between the line connecting C7 spinous process with the tragus of the ear and the horizontal line. |
10 weeks
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Colaboradores e Investigadores
Patrocinador
Publicaciones y enlaces útiles
Publicaciones Generales
- Lee SM, Lee CH, O'Sullivan D, Jung JH, Park JJ. Clinical effectiveness of a Pilates treatment for forward head posture. J Phys Ther Sci. 2016 Jul;28(7):2009-13. doi: 10.1589/jpts.28.2009. Epub 2016 Jul 29.
- Kim SD. Effects of yoga exercises for headaches: a systematic review of randomized controlled trials. J Phys Ther Sci. 2015 Jul;27(7):2377-80. doi: 10.1589/jpts.27.2377. Epub 2015 Jul 22.
- Quek J, Pua YH, Clark RA, Bryant AL. Effects of thoracic kyphosis and forward head posture on cervical range of motion in older adults. Man Ther. 2013 Feb;18(1):65-71. doi: 10.1016/j.math.2012.07.005. Epub 2012 Sep 5.
- Lee KJ, Han HY, Cheon SH, Park SH, Yong MS. The effect of forward head posture on muscle activity during neck protraction and retraction. J Phys Ther Sci. 2015 Mar;27(3):977-9. doi: 10.1589/jpts.27.977. Epub 2015 Mar 31.
- Zabihhosseinian M, Holmes MW, Ferguson B, Murphy B. Neck muscle fatigue alters the cervical flexion relaxation ratio in sub-clinical neck pain patients. Clin Biomech (Bristol). 2015 Jun;30(5):397-404. doi: 10.1016/j.clinbiomech.2015.03.020. Epub 2015 Mar 27.
- Shaghayegh Fard B, Ahmadi A, Maroufi N, Sarrafzadeh J. Evaluation of forward head posture in sitting and standing positions. Eur Spine J. 2016 Nov;25(11):3577-3582. doi: 10.1007/s00586-015-4254-x. Epub 2015 Oct 17.
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Finalización primaria (Estimado)
Finalización del estudio (Estimado)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Otros números de identificación del estudio
- 2023-H-0145-HS-R-0505
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Descripción del plan IPD
Any study records that identify patient will be kept confidential. The records from the participation may be reviewed by people responsible for making sure that research is done properly, including members of the BAU Institutional Review Board. All of these people are required to keep their identities confidential. Otherwise, records that identify patients will be available only to people working on the study.
• The investigators will use a code of numbers and alphabets rather than participants' names on data sheets, keeping records in a safe place.
Información sobre medicamentos y dispositivos, documentos del estudio
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