ABSTRACT
Introduction ..................................................................................................................... 499 Contributing Factors ........................................................................................................ 500 Preventing Disorders from Improper Backpack Use ...................................................... 501
Selection ...................................................................................................................... 501 Load ............................................................................................................................. 503 Wear ............................................................................................................................. 504 Lighten the Load .......................................................................................................... 504 Change the Design ...................................................................................................... 504
References ...................................................................................................................... 506 Other Resources .......................................................................................................... 506
INTRODUCTION
Schoolchildren around the world carry personal and school materials in book bags. In the United States alone, more than 40 million youths use book bags to carry textbooks, binders, laptop computers, bottles, clothes, athletic equipment, makeup, toys, and more.
