Relationship Between Forward Head Posture and Sagittal Lumbopelvic Alignment Among Smartphone Users
Forward head posture is a common postural abnormality characterized by anterior positioning of the head in the sagittal plane. This posture may increase biomechanical stress on the cervical spine and may be associated with compensatory changes in spinal and lumbopelvic alignment.
This observational study will investigate the relationship between forward head posture and sagittal lumbopelvic alignment among male smartphone users aged 18 to 35 years. Craniovertebral angle will be measured using the APECS mobile application, and sagittal lumbopelvic alignment parameters will be measured using the Spine3D LiDAR system.
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Forward head posture is considered one of the commonly occurring musculoskeletal postural abnormalities. It is characterized by an anterior position of the head relative to the body's line of gravity in the sagittal plane. This altered posture may increase mechanical load on cervical joints, ligaments, and surrounding soft tissues.
Sagittal spinal and lumbopelvic alignment are important components of global postural balance. Changes in one spinal region may influence adjacent regions through compensatory mechanisms that help maintain horizontal gaze and keep the body's center of gravity within the base of support.
Smartphone use is commonly associated with prolonged neck flexion and altered head posture. Therefore, this study aims to investigate the relationship between craniovertebral angle, as an indicator of forward head posture, and sagittal lumbopelvic alignment parameters among smartphone users.
A total of 85 male participants with forward head posture will be recruited from outpatient clinics and students of the Faculty of Physical Therapy, Sphinx University. Forward head posture will be assessed using craniovertebral angle measured by the APECS mobile application. Sagittal lumbopelvic alignment will be assessed using the Spine3D LiDAR system by Sensor Medica, including lordotic angle, lumbar arrow, and trunk inclination.
Tipo de estudo
Inscrição (Real)
Contactos e Locais
Locais de estudo
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Menia Governorate
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Minya, Menia Governorate, Egito
- Deraya university, faculty of physical therapy
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
Aceita Voluntários Saudáveis
Método de amostragem
População do estudo
Descrição
Inclusion Criteria:
- Male participants aged 18 to 35 years.
- Craniovertebral angle equal to or less than 50 degrees, measured photographically using the APECS mobile application.
- Body mass index from 18.5 to 24.9 kg/m².
- Smartphone use of at least 4 hours per day for at least 6 months.
- Asymptomatic participants without diagnosed musculoskeletal or neurological conditions.
- Medically stable participants.
- Participants willing to provide informed consent.
Exclusion Criteria:
- History of trauma.
- Major psychological problems.
- Previous surgery involving the spine, abdomen, or shoulders.
- Spinal deformity.
- Lower limb deformity.
- Low back pain.
- Current or chronic pain in the neck, back, or pelvis.
- Obesity.
- Concomitant systemic diseases, including systemic lupus erythematosus, diabetes mellitus, sickle cell anemia, multiple sclerosis, fibromyalgia, or cancer.
- Pregnancy.
- Degenerative or radicular cervical spine disorders, including cervical spondylosis, cervical degenerative disc disease, cervical radiculopathy, or cervical spinal stenosis.
- Degenerative or radicular lumbar spine disorders, including herniated disc or lumbar spinal stenosis.
- Participation in regular postural correction therapy or specific spine-focused exercise programs within the previous 6 months.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
Coortes e Intervenções
Grupo / Coorte |
Intervenção / Tratamento |
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Male Smartphone Users With Forward Head Posture
Male participants aged 18 to 35 years who use smartphones for at least 4 hours per day for at least 6 months and have forward head posture, defined by craniovertebral angle equal to or less than 50 degrees.
Participants will be assessed for craniovertebral angle and sagittal lumbopelvic alignment parameters during a single assessment session.
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The craniovertebral angle will be measured using the APECS mobile application to assess forward head posture.
Participants with a craniovertebral angle equal to or less than 50 degrees will be considered to have forward head posture.
Sagittal lumbopelvic alignment will be assessed using the Spine3D LiDAR system by Sensor Medica.
The measured parameters will include lordotic angle, lumbar arrow, and trunk inclination.
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
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Correlation Coefficient Between Craniovertebral Angle Measured by APECS Mobile Application and Lordotic Angle Measured by Spine3D LiDAR
Prazo: single assessment session at enrollment
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The Pearson correlation coefficient will be calculated between craniovertebral angle and lordotic angle.
Craniovertebral angle will be measured in degrees using the APECS mobile application.
Lordotic angle will be measured in degrees using the Spine3D LiDAR system by Sensor Medica.
The correlation coefficient is unitless.
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single assessment session at enrollment
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Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
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Correlation Coefficient Between Craniovertebral Angle Measured by APECS Mobile Application and Lumbar Arrow Measured by Spine3D LiDAR
Prazo: single assessment session at enrollment
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The Pearson correlation coefficient will be calculated between craniovertebral angle and lumbar arrow.
Craniovertebral angle will be measured in degrees using the APECS mobile application.
Lumbar arrow will be measured in millimeters using the Spine3D LiDAR system by Sensor Medica.
The correlation coefficient is unitless.
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single assessment session at enrollment
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Correlation Coefficient Between Craniovertebral Angle Measured by APECS Mobile Application and Trunk Inclination Measured by Spine3D LiDAR
Prazo: single assessment session at enrollment
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The Pearson correlation coefficient will be calculated between craniovertebral angle and trunk inclination.
Craniovertebral angle will be measured in degrees using the APECS mobile application.
Trunk inclination will be measured in degrees using the Spine3D LiDAR system by Sensor Medica.
The correlation coefficient is unitless.
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single assessment session at enrollment
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Colaboradores e Investigadores
Patrocinador
Publicações e links úteis
Publicações Gerais
- Richards KV, Beales DJ, Smith AJ, O'Sullivan PB, Straker LM. Neck Posture Clusters and Their Association With Biopsychosocial Factors and Neck Pain in Australian Adolescents. Phys Ther. 2016 Oct;96(10):1576-1587. doi: 10.2522/ptj.20150660. Epub 2016 May 12.
- Ahmed SM, et al. Relationship between forward head posture and sacral slope angle. Current Science International. 2019. doi:10.36632/csi/2019.8.4.22
- Kim EK, Kim SG. Forward head posture (FHP) angle and plantar pressure resulting from oscillatory stimulation training of the shoulder joint: A randomized controlled trial. J Back Musculoskelet Rehabil. 2019;32(1):37-42. doi: 10.3233/BMR-160748.
- Berthonnaud E, Dimnet J, Roussouly P, Labelle H. Analysis of the sagittal balance of the spine and pelvis using shape and orientation parameters. J Spinal Disord Tech. 2005 Feb;18(1):40-7. doi: 10.1097/01.bsd.0000117542.88865.77.
- Elabd AM, Elabd OM. Relationships between forward head posture and lumbopelvic sagittal alignment in older adults with chronic low back pain. J Bodyw Mov Ther. 2021 Oct;28:150-156. doi: 10.1016/j.jbmt.2021.07.036. Epub 2021 Aug 8.
- Asadzadeh A, Salahzadeh Z, Samad-Soltani T, Rezaei-Hachesu P. An affordable and immersive virtual reality-based exercise therapy in forward head posture. PLoS One. 2024 Mar 6;19(3):e0297863. doi: 10.1371/journal.pone.0297863. eCollection 2024.
- Kuss DJ, Kanjo E, Crook-Rumsey M, Kibowski F, Wang GY, Sumich A. Problematic Mobile Phone Use and Addiction Across Generations: the Roles of Psychopathological Symptoms and Smartphone Use. J Technol Behav Sci. 2018;3(3):141-149. doi: 10.1007/s41347-017-0041-3. Epub 2018 Jan 8.
- Lee S, Kang H, Shin G. Head flexion angle while using a smartphone. Ergonomics. 2015;58(2):220-6. doi: 10.1080/00140139.2014.967311. Epub 2014 Oct 17.
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- FHP-LPA-Smartphone-2025
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