The Effects of Age and Gender on the Weight and Use of SchoolbagsKellis, Eleftherios PhD; Emmanouilidou, Maria MScPediatric Physical Therapy: Spring 2010 - Volume 22 - Issue 1 - pp 17-25 doi: 10.1097/PEP.0b013e3181cbf852 Research Report Abstract In Brief Author Information Abstract Purpose: To examine age and gender differences in schoolbag use and to compare findings in Greece with those of other countries. Method: Schoolbag weight and carrying characteristics were assessed in 703 boys and girls aged 6 to 14 years. Results: Multinomial logistic regression models showed that younger students (6–8 years) were almost 5 more times more likely to carry heavier schoolbags than older students (p < 0.05). Similarly, more girls than boys carried heavier bags, and girls were twice more likely to experience fatigue symptoms when carrying schoolbags compared with boys (p < 0.05). The mean schoolbag weight was 12.4% of the student's body weight and moderately heavier than that reported for other countries. Conclusions: Younger children are in greater need for education about schoolbag weight compared with older ones. There is also evidence that girls might experience more problems when carrying their schoolbag compared with boys. In Brief This study of schoolbag use is unique in its inclusion of younger children. The authors conclude that young children are in greater need for education about schoolbag weight than are older children. There is also evidence that girls might experience more problems when carrying a schoolbag than boys. Author Information Laboratory of Neuromechanics, Department of Physical Education and Sports Sciences at Serres, Aristotle University of Thessaloniki, Serres, Greece Address Correspondence to: Eleftherios Kellis, PhD, TEFAA Serres, Agios Ioannis, Serres, 62110, Greece. E-mail: email@example.com Grant Support: This study was performed under the “Pythagoras II” research program funded by the European Commission and the Greek Ministry of Education. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Web site (www.pedpt.com). © 2010 Lippincott Williams & Wilkins, Inc.