Computer use is common in adolescents, and there is evidence that adolescent spinal posture alters during computer use. However, it is unknown if computer use and habitual postures are associated. The objective of this study was to evaluate associations between adolescent computer use and habitual postures.
Methods.
Eight hundred eighty-four adolescents (408 females, 476 males, mean age, 14.0 years, standard deviation, 0.2) completed a questionnaire assessing weekly computer use. Habitual spinal posture was assessed by photographic analysis while standing and sitting.
Results.
Computer use was associated with adolescent habitual postures. In males, increased computer use was associated with increased head flexion and neck flexion. In females, increased computer use was associated with increased lumbar lordosis.
Conclusions.
The amount of weekly computer use was associated with changes in habitual spinal postures, and these depended on gender. These associations may result from temporary computer postures leading to adaptive neuromusculoskeletal changes, though further multivariate and longitudinal studies are needed to confirm causality. As some habitual posture changes may place a greater strain on the musculoskeletal system, computer use by adolescents should be viewed as a possible health concern.
References
1.
Cheeseman-DayJJanusADavisJ. Computer and Internet use in the United States: 2003. Washington: U.S. Census Bureau; 2005.
2.
SubrahmanyamKKrautREGreenfieldPMGrossEF. The impact of computer use on children's and adolescents' development. J Appl Dev Psychol2001; 22:7–30.
3.
DemunterC. The digital divide in Europe. Publication no. 38/2005. Luxembourg: Statistical Office of the European Communities; 2005.
4.
Australian Bureau of Statistics. Children's participation in cultural and leisure activities, Australia. Publication no. 4901.0. Canberra (New South Wales): Australian Bureau of Statistics; 2003.
5.
RobertsDLRoehrUGRideoutV. Generation M: media in the lives of 8–18 year-olds. Menlo Park (CA): The Henry J. Kaiser Family Foundation; 2005.
6.
StrakerLPollockCBurgess-LimerickR. Towards evidence-based guidelines for wise use of computers by children. Int J Ind Ergon2006; 36:1045–53.
7.
GreigAStrakerLBriggsA. Cervical erector spinae and upper trapezius muscle activity in children using different information technologies. Physiotherapy2005; 91:119–26.
8.
StrakerLBriggsAGreigA. The effect of individually adjusted workstations on upper quadrant posture and muscle activity in school children. Work2002; 18:239–48.
9.
StrakerLMPollockCMZubrickSRKurinczukJJ. The association between information and communication technology exposure and physical activity, musculoskeletal and visual symptoms and socio-economic status in 5-year-olds. Child Care Health Dev2006; 32:343–51.
10.
HoSMLeeTM. Computer usage and its relationship with adolescent lifestyle in Hong Kong. J Adolesc Health2001; 29:258–66.
11.
OldsTDollmanJRidleyKBoshoffKHartshorneSKennaughS. Children and sport in South Australia. Belconnen (South Australia): Australian Sports Commission; 2004.
12.
SantosMPGomesHMotaJ. Physical activity and sedentary behaviors in adolescents. Ann Behav Med2005; 30:21–4.
13.
StrakerLMekhoraK. An evaluation of visual display unit placement by electromyography, posture, discomfort and preference. Int J Ind Ergon2000; 26:389–98.
14.
KietrysDMMcClurePWFitzgeraldGK. The relationship between head and neck posture and VDT screen height in keyboard operators. Phys Ther1998; 78:395–403.
BriggsAStrakerLGreigA. Upper quadrant postural changes of school children in response to interaction with different information technologies. Ergonomics2004; 47:790–819.
17.
HarrisCStrakerL. Survey of physical ergonomics issues associated with school children's use of laptop computers. Int J Ind Ergon2000; 26:337–46.
18.
LaeserKLMaxwellLEHedgeA. The effect of computer workstation design on student posture. J Res Computing Education1998; 31:173–88.
19.
StrakerLPollockC. Optimizing the interaction of children with information and communication technologies. Ergonomics2005; 48: 506–21.
20.
CookCBurgess-LimerickRChangS. The prevalence of neck and upper extremity musculoskeletal symptoms in computer mouse users. Int J Ind Ergon2000; 26:347–56.
21.
Juul-KristensenBJensenC. Self-reported workplace related ergonomic conditions as prognostic factors for musculoskeletal symptoms: the “BIT” follow up study on office workers. Occup Environ Med2005; 62:188–94.
22.
BrandtLPAndersenJHLassenCFKrygerAOvergaardEVilstrupI. Neck and shoulder symptoms and disorders among Danish computer workers. Scand J Work Environ Health2004; 30:399–409.
23.
RamosEMAJamesCABear-LehmanJ. Children's computer usage: are they at risk of developing repetitive strain injury?Work2005; 25:143–54.
24.
BucklePWDevereuxJJ. The nature of work-related neck and upper limb musculoskeletal disorders. Appl Ergon2002; 33:207–17.
25.
KendallGE. Children in families in communities: a modified conceptual framework and an analytical strategy for identifying patterns of factors associated with developmental health problems in childhood [PhD thesis]. Perth (Western Australia): University of Western Australia; 2003.
26.
SPSS, Inc.SPSS: Version 13.0 for Windows. Chicago: SPSS, Inc.; 2004.
27.
BurkeAPeperE. Cumulative trauma disorder risk for children using computer products: results of a pilot investigation with a student convenience sample. Public Health Rep2002; 117:350–7.
28.
StangerJDGridinaN. Media in the home 1999: the fourth annual survey of parents and children (Survey series number 5). Philadelphia: The Annenberg Public Policy Center of the University of Pennsylvania; 2005 Also available from: URL: http://www.annenbergpublicpolicycenter.org/05_media_developing_child/ mediasurvey/survey5.pdf [cited 2006 Jun 22].
29.
VandewaterEAShimMSCaplovitzAG. Linking obesity and activity level with children's television and video game use. J Adolesc2004; 27:71–85.
30.
NovakCBMackinnonSE. Repetitive use and static postures: a source of nerve compression and pain. J Hand Ther1997; 10:151–9.
31.
MuellerMJMalufKS. Tissue adaptation to physical stress: a proposed “Physical Stress Theory” to guide physical therapist practice, education, and research. Phys Ther2002; 82:383–403.
32.
McKayHAPetitMASchutzRWPriorJCBarrSIKhanKM. Augmented trochanteric bone mineral density after modified physical education classes: a randomized school-based exercise intervention study in prepubescent and early pubescent children. J Pediatr2000; 136:156–62.
33.
MulhearnSGeorgeK. Abdominal muscle endurance and its association with posture and low back pain: an initial investigation in male and female elite gymnasts. Physiotherapy1999; 85:210–6.
34.
StrakerLMO'SullivanPBKendallGPollockCSloanNSmithAJ. ITKids: exposure to computers and adolescents' neck posture and pain. In: PikaarAMKoningsveldEAPSettelsPFM, editors. CD-ROM proceedings of the International Ergonomics Association Triennial Congress2006; 2006 Jul 10-14; Maastricht (Netherlands).
35.
HertzbergA. Prediction of cervical and low-back pain based on routine school health examinations. A nine- to twelve-year follow-up study. Scand J Prim Health Care1985; 3:247–53.
36.
MurphySBucklePStubbsD. Classroom posture and self-reported back and neck pain in schoolchildren. Appl Ergon2004; 35:113–20.
37.
McAvineyJSchulzDBockRHarrisonDEHollandB. Determining the relationship between cervical lordosis and neck complaints. J Manipulative Physiol Ther2005; 28:187–93.
38.
HarrisonDDHarrisonDEJanikTJCaillietRFerrantelliJRHaasJW. Modeling of the sagittal cervical spine as a method to discriminate hypolordosis: results of elliptical and circular modelling in 72 asymptomatic subjects, 52 acute neck pain subjects, and 70 chronic neck pain subjects. Spine2004; 29:2485–92.
39.
AriensGBongersPDouwesMMiedemaMCHoogendoornWEvan der WalG. Are neck flexion, neck rotation, and sitting at work risk factors for neck pain? Results of a prospective cohort study. Occup Environ Med2001; 58:200–7.
40.
KirbyRLFahieCLSmithCChesterELMacLeodDA. Neck discomfort of wheelchair users: effect of neck position. Disabil Rehabil2004; 26:9–15.
41.
Griegel-MorrisPLarsonKMueller-KlausKOatisCA. Incidence of common postural abnormalities in the cervical, shoulder, and thoracic regions and their association with pain in two age groups of healthy subjects. Phys Ther1992; 72:425–31.
42.
PheasantS. Bodyspace: anthropometry, ergonomics and the design of work. 2nd ed.London and Philadelphia: Taylor & Francis; 1996.
43.
KarlqvistLTornqvistEWHagbergMHagmanMToomingasA. Self-reported working conditions of VDU operators and associations with musculoskeletal symptoms: a cross-sectional study focussing on gender differences. Int J Ind Ergon2002; 30:277–94.
