| 
                    If 
                    you have children in elementary or middle school, you are 
                    probably used to seeing them trudge to and from school with 
                    backpacks stuffed with heavy textbooks. What you may not know 
                    is that children who regularly carry backpacks and schoolbags 
                    generate a substantial force on their spines, which may lead 
                    to low back pain.  
 A study appearing recently in the journal Spine evaluated 
                    whether children's perceptions of backpack weight or actual 
                    backpack weights are related to back pain, and uncovered personal, 
                    familial, and school factors that determine backpack weight. 
                    In the study, involving 11-year-old schoolchildren in Milan, 
                    Italy, researchers recorded the backpack weights of nearly 
                    250 students over six days; 115 of these children completed 
                    a questionnaire on their feelings about carrying their backpacks. 
                    Backpack-related activities led to low back pain in almost 
                    half of the students; four out of five felt their backpacks 
                    were heavy; and two-thirds responded that they felt fatigue 
                    when carrying their backpack. Surprisingly, low back pain 
                    was not linked to backpack weight or proportion of backpack-to-student 
                    weight, but was "clearly" associated with fatigue while carrying 
                    a backpack. Lifetime prevalence of low back pain was related 
                    to the amount of time children carried backpacks on their 
                    shoulders.
 In this study, the average backpack weighed 20 pounds. The 
                    resulting spinal loads on the 11-year-old children proportionally 
                    surpassed the legal occupational limits set for adults, according 
                    to the authors of this study. To reduce your child's backpack 
                    weight, examine the daily contents to assure only necessary 
                    items are within, and have your children leave what they can 
                    in their lockers at school.  Reference:  Negrini S, Carabalona R. Backpacks on! Schoolchildren's 
                    perceptions of load, associations with back pain and factors 
                    determining the load. Spine 2002:27(2), pp. 187-195. To learn more about pediatric health, go to https://www.chiroweb.com/find/archives/pediatrics/index.html.   |