David Beckham looks cool wearing a sling bag full of contents. But better, do not sling bag filled with too much because it can make shoulder pain and back injury.

Use of sling bags by men is bustling done, largely because it follows the existing modes. For goods that luggage weight is not just the experts recommend wearing sling bag everyday.

Sling bag that is used is usually made of soft leather or canvas with single strap, allowing people to rope slung on his back.

Some men prefer to use a sling bag containing various items. But medical experts said heavy sling bag that can cause serious back injury.

A recent study conducted by the British Chiropractic Association found the man too much to bring the goods ‘essential’ in a sling bag, such as laptops, cell phones, books and some equipment for a workout at the gym.

British Chiropractic Association estimates the average weight of the sling bag that used these men to 6.2 pounds, especially if he put the laptop into it.

“Sling bag heavy everyday use can cause back and shoulder pain due to prolonged stress,” says Tim Hutchful of the British Chiropractic Association.

The use of continuous sling bag can also be burdensome one side of the shoulder, and if this condition is left alone it will have an impact on changes in body posture.

Generally, the initial symptoms appear is pain, pain or stiffness in the shoulders and back which will be menghambatan movement and activity. If it appears the complaint should refrain from using a backpack.

Hutchful tells someone to be smart when entering goods into a sling bag needs, this is to reduce too much pressure on certain points on the body that can trigger pain.

If you must bring the goods in quantity or weight, you should use the other as an extra bag which can carry. And if you want to bring a laptop to use a backpack with wide straps that are designed for laptops.