1. Barkhordari A, Ehrampoush MH, Barkhordari M, Derakhshi F, Barkhoradri M, Mirzaii M. Assessment of school backpack weight and other characteristics in elementary schools, Yazd, Iran. J. Community Health Res. 2013;2(1):2-7.
2. Sheir-Neiss GI, Kruse RW, Rahman T, Jacobson LP, Pelli JA. The association of backpack use and back pain in adolescents. Spine. 2003;28(9):922-30. [
DOI:10.1097/01.BRS.0000058725.18067.F7]
3. Young IA, Haig AJ, Yamakawa KS. The association between backpack weight and low back pain in children. J. Back Musculoskelet. Rehabil. 2006;19(1):25-33. [
DOI:10.3233/BMR-2006-19104]
4. Mwaka ES, Munabi IG, Buwembo W, Kukkiriza J, Ochieng J. Musculoskeletal pain and school bag use: a cross-sectional study among Ugandan pupils. BMC Res Notes. 2014;7(1):222. doi: 10.1186/1756-0500-7-222 [
DOI:10.1186/1756-0500-7-222]
5. Dianat I, Sorkhi N, Pourhossein A, Alipour A, Asghari-Jafarabadi M. Neck, shoulder and low back pain in secondary schoolchildren in relation to schoolbag carriage: Should the recommended weight limits be gender-specific? Appl Ergon. 2014;45(3):437-42. [
DOI:10.1016/j.apergo.2013.06.003]
6. Rodríguez-Oviedo P, Santiago-Pérez MI, PérezRíos M, Gómez-Fernández D, Fernández-Alonso A, Carreira-Núñez I, et al. Backpack weight and back pain reduction: effect of an intervention in adolescents. Pediatr Res. 2018;84(1):34-40. [
DOI:10.1038/s41390-018-0013-0]
7. Kargar M, Jamali Moghadam N, Moattari M. The effect of osteoporosis prevention education by peers and health personnel on self-efficacy of adolescents with nephrotic syndrome. IJN. 2013;26(81):44-53.
8. Coggins C, Segal S. AIDS and reproductive health. J Reprod Immunol. 1998 ;41(1-2):3-15. [
DOI:10.1016/S0165-0378(98)00045-X]
9. Tolli MV. Effectiveness of peer education interventions for HIV prevention, adolescent pregnancy prevention and sexual health promotion for young people: a systematic review of European studies. Health Edu Res. 2012;27(5):904-13. [
DOI:10.1093/her/cys055]
10. Rodríguez-Oviedo P, Santiago-Pérez MI, PérezRíos M, Gómez-Fernández D, Fernández-Alonso A, Carreira-Núñez I, et al. Backpack weight and back pain reduction: effect of an intervention in adolescents. Pediatr Res. 2018;84(1):34-40. [
DOI:10.1038/s41390-018-0013-0]
11. Fernandes SMdS, Casarotto RA, João SMA. Effects of educational sessions on school backpack use among elementary school students. Rev Bras Fisioter. 2008;12(6):447-53. [
DOI:10.1590/S1413-35552008005000002]
12. Goodgold SA, Nielsen D. Effectiveness of a schoolbased backpack health promotion program: Backpack Intelligence. Work. 2003;21(2):113-23.
13. Syazwan A, Azhar MM, Anita A, Azizan H, Shaharuddin M, Hanafiah JM, et al. Poor sitting posture and a heavy schoolbag as contributors to musculoskeletal pain in children: an ergonomic school education intervention program.Pain Res.2011;4:287-96. [
DOI:10.2147/JPR.S22281]
14. Mirmohammadi SJ, Nadri MR, Mehrparvar AH, Davari MH, Mostaghaci M. Effect of Ergonomic Modification Training about Schoolbag on Reduction of Musculoskeletal Complaints in Primary School Students. FOCSCI. 2016;2(3).
15. Negrini S, Politano E, Carabalona R, Tartarotti L, Marchetti ML. The backpack load in schoolchildren: clinical and social importance, and efficacy of a community-based educational intervention. A prospective controlled cohort study. Eura Medicophys. 2004;40(3):185-90.
16. Dianat I, Javadivala Z, Allahverdipour H. School bag weight and the occurrence of shoulder, hand/ wrist and low back symptoms among Iranian elementary schoolchildren. Health Promot Perspect. 2011; 1(1):76-85.
17. Dockrell S, Kane C, O'keefe E. Schoolbag weight and the effects of schoolbag carriage on secondary school students. Ergonomics. 2006;9:216-22.
18. Ibrahim AH. Incidence of Back Pain in Egyptian School Girls: Effect of School Bag Weight and Carrying Waymu. WASJ. 2012;17(11):1526-34.
19. Mirzaei R, Ansari H, Khammari A, Afrouz M. Survey of relationship between ergonomic and environmental conditions of classrooms and pain sensation in students. .Journal of Inflammatory Diseases. 2010;13(4):36-41.
20. Whittfield J, Legg S, Hedderley D. Schoolbag weight and musculoskeletal symptoms in New Zealand secondary schools. Appl Ergon. 2005;36(2):193-8. [
DOI:10.1016/j.apergo.2004.10.004]
21. Shamsoddini A, Hollisaz M, Sobhani V, Khatibi E, Amanellahi A. The Frequency of Musculoskeletal Disorders in Students of Tehran, Tehran, Iran. QUMS. 2012;6(2):31-6.