Notebooks, folders, books, holster, extracurricular activities, lack of exercise and multiple demands threaten the health of a column that will hold the body throughout life. With the beginning of the school kids start charging a "heavy backpack. " 42% of children under 11 years suffering from back pain, and a major cause of the problem is the weight of their backpacks. Moreover, among adolescents aged 13 to 16 years the number increases, being the most affected girls, 69% of cases. These are data from a study of RiesgoLab, a company specializing in occupational health and environmental management. Marcelo Gelfman, child trauma, a physician at Children's Hospital Ricardo Gutierrez, see these numbers reflected in their work every day. "In recent years have increased consultations for back pain, especially preteens and teens for carrying heavy backpacks," he says. For Dr. Oscar Cervino, a specialist in Child Orthopedics Los Arcos Sanatorium, backpacks not only cause inconvenience. This kind of pain are also due to that "children are exposed to stressful situations and requirements that were not seen. Children are full agenda or department. " Excessive weight on the back of an immature skeleton can produce headaches, tiredness, fatigue and increased bad posture. But "the use of backpacks, by themselves, can not produce scoliosis or kyphosis," says Gelfman. Although these conditions still may be aggravated by carrying too much weight. Both professionals recommend "using a school backpack properly to the child and increased physical activity to strengthen abdominal and spinal muscles. " According to the recommendations of the American Physical Therapy Association, the school backpack should be worn with both straps on the strongest muscles in the middle of the back and should reduce the load. Another thing to consider are the features of the school backpack itself: it must be sized according to the boy, back padded, wide straps that do not compress the armpits, chest straps and hip supplementary, and several compartments to spread the load. While backpacks are better cart regarding the transfer of weight, consider that these are hand adjustable child's height and big wheels for more stability, so that there is no wrist injuries in the transfers. Experts also say it would be beneficial if there were lockers in schools to stop supplies. And if the kids climb stairs, require them to carry the backpacks with wheels on the back. To Silvina Resnik, director general of a college dual education "is important to work with teachers to help kids get organized. It is a waste of time, but part of their learning. " Increasing physical activity, physical work elongation implement and carry only the essential elements are then the recommendations to keep your back healthy, according to the doctors agree. So for this new school backpack year will bring only the best essentials. And exercise and adopt good posture at the time of study and be in front of the computer. . . .