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Sex and Height Influence Neck Posture When Using Electronic Handheld Devices.

Caitlin B Yoakum¹, Ashly N Romero¹, Courtney Latham¹

¹Department of Anthropology, University of Arkansas, Fayetteville, Arkansas.

Clinical Anatomy (New York, N.Y.)

|August 4, 2019

Summary

Tablet use increases neck flexion and pain. Skeletal morphology, influenced by sex and height, affects neck posture during tablet use, but no link to temporomandibular joint disorder was found.

Keywords:

mobile computing neck posture tablet computer temporomandibular joint disorder

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Area of Science:

Biomechanics
Anthropology
Radiographic analysis

Background:

Increased tablet use correlates with heightened neck flexion and associated neck pain.
Individual morphology and external factors may influence tablet viewing postures.
Understanding these variations is crucial for addressing posture-related discomfort.

Purpose of the Study:

To investigate variations in neck postures during tablet use.
To correlate these postural variations with individual factors like sex, height, weight, and temporomandibular joint disorder (TMD).
To explore the role of head and neck morphology in determining posture.

Main Methods:

Utilized geometric morphometric techniques on 2D lateral-view radiographs of 22 participants.
Analyzed skeletal morphology across various seated postures (neutral, upright, flexed, semi-reclined, reclined).
Correlated morphological data with participant sex, height, weight, and TMD status.

Main Results:

Skeletal morphology significantly correlated with sex and height across most postures (P < 0.05).
Weight showed a marginal relationship with morphology in the semi-reclined posture (P = 0.047).
Males exhibited greater atlantooccipital joint flexion; females showed greater mandibular protrusion, potentially linked to height. No posture-TMD relationship was identified.

Conclusions:

Skeletal morphology, influenced by sex and height, plays a role in neck posture during tablet use.
Geometric morphometrics provide a framework for analyzing posture variations and their relation to TMD.
Further research is needed to fully elucidate the complex interplay between morphology, posture, and potential health outcomes.