Backpack weight and back pain reduction: effect of an intervention in adolescents.

BACKGROUND: To assess if an educational intervention is effective to reduce backpack weight and back pain in schoolchildren. METHODS: We designed an intervention study in schoolchildren aged between 12 and 16 years aimed to reduce the weight of backpacks and back pain. The intervention was multifaceted, including an educational intervention with practical examples, advising on performing sports, postural habits, leaflets, stickers, and so on. The comparison group did not receive any intervention. RESULTS: A total of 1668 schoolchildren took part in the study. We observed a high prevalence of carrying heavy backpacks, with 66-80% of schoolchildren carrying backpacks surpassing 10% of their body weight. Back pain prevalence was 30%. We observed that the intervention was significant in reducing the backpack weight in first-year schoolchildren but not in second-year. The intervention was also significant in reducing back pain in third-year schoolchildren but only in girls. CONCLUSION: This study shows that an inexpensive intervention directed to reduce the backpack weight and back pain might have a positive effect in schoolchildren.

School children's backpacks, back pain and back pathologies.

OBJECTIVE: To investigate whether backpack weight is associated with back pain and back pathology in school children. DESIGN: Cross-sectional study. SETTING: Schools in Northern Galicia, Spain. PATIENTS: All children aged 12-17. INTERVENTIONS: Backpack weight along with body mass index, age and gender. MAIN OUTCOME MEASURES: Back pain and back pathology. RESULTS: 1403 school children were analysed. Of these, 61.4% had backpacks exceeding 10% of their body weight. Those carrying the heaviest backpacks had a 50% higher risk of back pain (OR 1.50 CI 95% 1.06 to 2.12) and a 42% higher risk of back pathology, although this last result was not statistically significant (OR 1.42 CI 95% 0.86 to 2.32). Girls presented a higher risk of back pain compared with boys. CONCLUSIONS: Carrying backpacks increases the risk of back pain and possibly the risk of back pathology. The prevalence of school children carrying heavy backpacks is extremely high. Preventive and educational activities should be implemented in this age group.