Over the course of a school year, a heavy bag filled with textbooks can really hurt your back. Greatist suggests keeping your bag strapped tightly to your body to reduce the risk of injury.
Photo by TDN Channel . Greatist has a few suggestions for reducing that risk, including packing the heaviest items at the bottom, using two straps, and making sure your back is even. More importantly, it's about keeping that bag strapped tightly to your back:
Keep it all close to the body. Weight is just one of two factors that can lead to injury. "Postural sway" is the amount of torque and tension placed on the spine by a heavy load. Carrying a bag closer to the body will reduce the amount of sway and stress placed on the spinal muscles . For concerned bag owners, a physical therapist can help find bag with ergonomics best suited to your body type.
So, when you're packing that bag up for your long day of classes, make sure it's not swaying all over the place. Your spinal muscles will thank you.