Student Backpacks: More Homework, Heavier Books, Sore Shoulders

Q:  Could you please discuss appropriate weight limits and proper positioning of children's backpacks? I am very concerned, as there are times that I can barely drag, let alone lift my junior high school student's backpack. I am also concerned that my children will be harmed during a critical period of growth. It would also be helpful if you could address the school's responsibility in this, such as staggering assignments or having one down night each week for each subject.

A:  My youngest son just started seventh grade, and we talked about keeping more of his books and supplies in his locker, which he will hopefully keep better organized this year! Middle school does seem to be the time when kids have more homework, heavier books, and rapidly growing bodies. I spoke with a school board member who said that having teachers coordinate assignments is one thing, but ensuring that students are disciplined about it is another. They may have a several days to do a project, but not prioritize well and end up bringing many books home at the last minute anyway, which is beyond the teacher's control.

William Greaves, MD, MSPH, Chairman of Preventive Medicine at the Medical College of Wisconsin and past president of the American College of Occupational and Environmental Medicine says there are no national standards for backpacks for children. For heavier weights he suggests a rigid frame and a strap around the waist to take some of the load off the shoulders.

The American Physical Therapy Association recommends that a child should carry no more than15-20% of their body weight and should be sure to wear both straps. Slinging a strap over one shoulder causes the child to lean against the uneven weight, curving the spine. Wider shoulder straps are also better at distributing the load evenly and not causing nerve compression.

"Dear Doctor" is a compilation of patient questions answered by doctors from the Medical College of Wisconsin.