Index to Chiropractic Literature
Index to Chiropractic Literature
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ID 25862
  Title Influence of forward head posture on myotonometric measurements of superficial neck muscle tone, elasticity, and stiffness in asymptomatic individuals with sedentary jobs
URL https://www.ncbi.nlm.nih.gov/pubmed/31122786
Journal J Manipulative Physiol Ther. 2019 Mar-Apr;42(3):195-202
Author(s)
Subject(s)
Peer Review Yes
Publication Type Article
Abstract/Notes

OBJECTIVE: The objective of the study was to assess the influence of forward head posture on the mechanical parameters and pressure pain threshold of superficial neck muscles in clinically nonsymptomatic individuals with sedentary jobs.

METHODS: Twenty-five office workers with forward head posture and 25 office workers with normal head posture were matched for sex, age, body mass index, and the nature and duration of their work and were compared at a single point. The study participants were divided into study groups on the basis of photometric craniovertebral angle measurements. The upper trapezius, sternocleidomastoid, and splenius capitis mechanical properties were assessed in the sitting position. Primary outcome measures were muscle stiffness (N/m), muscle tone (Hz), and muscle elasticity. The secondary variable was perceived pain threshold.

RESULTS: No significant differences between the groups were found for biomechanical properties and perceived pain threshold in the studied muscles.

CONCLUSION: Forward head posture has no impact on muscle stiffness, tone, and elasticity, nor does it increase the pressure sensitivity of superficial neck muscles in healthy, mildly symptomatic office workers. It is most likely that not incorrect posture of the cervical spine, but probably other factors combined with forward head posture, like comorbid acute and chronic cervical pain and musculoskeletal disorders or prolonged sitting, contribute to changes in active myofascial tone and tensegrity as well as increased pressure sensitivity of neck muscles.

Author keywords: Neck Muscles, Muscle Tonus, Elasticity, Pain Threshold, Posture

Author affiliations: PK, MG, JL, DL: Department of Musculoskeletal Rehabilitation, Poznan University of Physical Education, Poznan, Poland; MW: Department of Physical Culture of People with Disabilities, Poznan University of Physical Education, Poznan, Poland.

This abstract is reproduced with the permission of the publisher; full text is available by subscription. Click on the above link and select a publisher from PubMed's LinkOut feature.


 

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