Is your kid's backpack safe for them? Here's how to tell.

Pens and pencils? Check. Notebooks? Check. The only thing left on your school supply list is the bag to carry all the items required to set your kid up for success this year.

But choosing a backpack takes much more consideration than simply picking the one with your kid’s favorite design or cartoon character. Karena Wu, physical therapist and owner of ActiveCare Physical Therapy in NYC and Mumbai, encourages parents to pay special attention to the construction and material used when selecting a backpack.

Not only are kids packing all those school supplies you stocked up on, “but when they get to school they are getting textbooks, and in this day and age, probably also getting tablets and e-readers,” says Wu. “The amount of stuff you put in the backpack, in addition to the amount of stuff the school is going to give to your kid, means a lot of weight.”

Your child should not carry more than 10-15 percent of their body weight in their backpack.

Her rule of thumb? Your child should not carry more than 10-15 percent of their body weight in their backpack. “We’ve all seen the postural change that happens when a kid is carrying more than this; their shoulders hunch and round as the weight pulls them down and backwards,” says Wu.

“The backpack is a necessary accessory for the whole school year, it has to be fashionable for the kid — and functional. It’s important to not have any necessary school item cause issues with your child’s body,” says Wu.

source: nbcnews.com