Neck posture measurement amongst schoolchildren

Background: There is a paucity in basic data concerning neck posture in childhood. Our aim was to gain preliminary data on the head/neck/shoulder posture, and to document their evolution with growth in schoolchildren. Methods: For measuring posture digital photographs were taken of the children seated in a straight-high-backed chair. The camera (Agfa 5Ti, 5.2 megapixels) was located perpendicularly to each subject’s height, positioned from the left side, the focus was on the tragus with a standard distance of 150 cm. The fi rst photo was taken in the “neutral head posture” and a second photo in “resting” posture). The digital photos were then evaluated by a computer software program (distributed as Marker Angels). The angles analyzed were as follows: the craniovertebral angle (CVA), the head tilt angle (HTA), the shoulder angle (SHA). Subjects were hundred and fortyseven 9-year old, and hundred and fourtythree 16-year old schoolchildren, who were attending public school in different districts of Budapest. Results: In the 16-year old’s group the CVA values have been found reduced signifi cantly (by an average of 8 degrees in neutral position and 6 degrees in resting position) compared to the 9 year olds. The HTA elevated by an average of 1.6 degrees (NS) in neutral position and reduced signifi cantly (by 4.2 degrees) in resting position. The values of the SHA elevated signifi cantly (by an average of 13.33 degrees in neutral position and 13.32 degrees in resting) between the 9–16 year olds, which referred to more protracted shoulder posture. Discussion: The CVA characterizes the neck posture, the less it’s value, the more the forward position. The neck posture is in strong correlation to the head and the shoulder positions. That means forward bent neck position is in correlation to the so called “rounded” shoulder or the shoulder protraction. Although the position of the was found not consequent in neutral position, however was in correlation in resting position. Conclusion: Measuring head/neck/shoulder posture by means of digital photos and evaula ted by computer program proved easy, useful method. We obtained preliminary descriptive data on neck posture in degrees of two age groups of schoolchildren. The comparison of the results pro ved the tendency of progression in “poor posture” during 7 schoolyears, between in the age of 9–16. DOI:  10.17489/biohun/2010/1/22

[1]  The Relationship Between Surface Contour and Vertebral Body Measures of Upper Spine Curvature , 1994, Spine.

[2]  K. Grimmer,et al.  The associations between adolescent head-on-neck posture, backpack weight, and anthropometric features. , 1999, Spine.

[3]  C. Moorrees,et al.  Natural head position and natural head orientation: basic considerations in cephalometric analysis and research. , 1995, European journal of orthodontics.

[4]  Cervical range of motion and strength during resting and neutral head postures in healthy young adults , 1999 .

[5]  C. Oatis,et al.  Incidence of common postural abnormalities in the cervical, shoulder, and thoracic regions and their association with pain in two age groups of healthy subjects. , 1992, Physical therapy.

[6]  S. Sepic,et al.  Roentgenographic Findings of the Cervical Spine in Asymptomatic People , 1986, Spine.

[7]  L. Straker,et al.  A field comparison of neck and shoulder postures in symptomatic and asymptomatic office workers. , 2002, Applied ergonomics.

[8]  B L Braun,et al.  Quantitative assessment of head and shoulder posture. , 1989, Archives of physical medicine and rehabilitation.

[9]  G. Johnson,et al.  The Correlation Between Surface Measurement of Head and Neck Posture and the Anatomic Position of the Upper Cervical Vertebrae , 1998, Spine.

[10]  E. Owens,et al.  Comparisons of lordotic cervical spine curvatures to a theoretical ideal model of the static sagittal cervical spine. , 1996, Spine.

[11]  A. Alanay,et al.  The Evolution of Sagittal Segmental Alignment of the Spine During Childhood , 2005, Spine.

[12]  M. Descarreaux,et al.  Postural development in school children: a cross-sectional study , 2007, Chiropractic & osteopathy.

[13]  K. Grimmer,et al.  Effects of backpacks on students: measurement of cervical and shoulder posture. , 2001, The Australian journal of physiotherapy.

[14]  B. Braun.  Postural differences between asymptomatic men and women and craniofacial pain patients. , 1991, Archives of physical medicine and rehabilitation.

[15]  D. Brunt,et al.  Assessment of total head excursion and resting head posture. , 1991, Archives of physical medicine and rehabilitation.

[16]  C. Vaughan,et al.  Photographic measurement of upper-body sitting posture of high school students: A reliability and validity study , 2008, BMC musculoskeletal disorders.