Differences in Cervical Extensor Muscles Thickness on Subjects with Normal Head Posture and Forward Head Posture; an Ultrasonography Study
Journal Title: Journal of Rehabilitation Sciences and Research - Year 2015, Vol 2, Issue 2
Abstract
Background: Forward head posture (FHP) is recognized as a common postural disorder of modern societies. Increase in anterior cervical convexity and anterior displacement of the line of gravity of head in individuals with FHP is assumed to result in alteredmoment arms and muscle activity on cervical spine. Measurement of muscle thickness seems to be an appropriate index for muscle activity. This study was aimed to compare cervical extensor muscle thickness in individuals with normal head posture with those suffering from FHP. Methods: Twenty volunteers with FHP and 20 matched controls (11 females and 9 males in each group)participated in this cross-sectional study. The thickness of cervical extensor muscles including multifidus, semispinalis cervicis, semispinalis capitis, splenius capitis and upper trapezius were measured using ultrasonography at the level of forth cervical vertebrae at rest. Results: No significant differences of thickness of cervical extensor muscles were observed between the two groups (P<0.05) at of rest. Conclusion: The results of this study showed that the thickness of cervical extensor muscles at the level of forth cervical vertebrae in individuals with FHP did not change in comparison with normal head posture at rest. Further studies are recommended to evaluate extensor muscles at other levels of cervical spine.
Authors and Affiliations
Fereshte Goodarzi, Noureddin Karimi, Leila Rahnama, Soheila Khodakarim
Keywords
Related Articles
- EP ID EP244415
- DOI -
- Views 107
- Downloads 0
Stability Analysis in Individuals with Complete and Incomplete Spinal cord Injury: Linear Versus Non-Linear Methods
Background: Individuals with spinal cord injury (SCI) lose their abilities to stand. The effectiveness of compensating strategies such as the use of various orthosis is studied by stability analysis. These kind of analys...
Effects of Temperature on Wrist Flexor Muscles Endurance
Background: It is widely recognized that neuromuscular function is temperature sensitive. Changes in muscle temperature may affect muscle force development. The aim of this study was to investigate the effects of tempera...
The Comparison between Spectral and Entropic Measures Following Fatigue in Erector Spinae Muscles
Background: Surface electromyography (sEMG) of muscles is a non-invasive tool that can be helpful in the assessment of muscle function and some motor control evaluations. A loss of force, known as muscle fatigue is accom...
Effects of Acute Fatigue of the Tibialis Anterior Due to a Weight-Bearing Muscle Activity on the Ankle Joint Position Sense in Healthy Subjects
several sources, including skin, joint capsule/ligaments, and muscular receptors. If the muscle receptors play a leading role in detecting joint position awareness, then muscle fatigue might yield a declination in JPS. T...
Investigating the Auditory Differentiation Skill in Normal 7-8 Year Old Persian Children in Shiraz
Background: Development of auditory differentiation skill plays an imperative role in the development of speech and language skills of children as well as central auditory processing. One of the instruments employed in t...