How Heavy is Too Heavy? Protecting Students’ Backs from Overloaded Backpacks

The overweight backpack remains a major concern for families and the Department of Education. Recognized as a true public health issue, an overly heavy bag directly affects the well-being and learning of students, causing fatigue and joint pain. Current solutions include streamlining supply lists, increasing the use of digital tools, and improving logistical organization with school lockers. These lightening efforts primarily target elementary and middle school students whose growth is ongoing.

What is the ideal weight for a student’s backpack?

According to recommendations from the Department of Education and doctors, a backpack should not exceed more than 10% of a child’s body weight. “That averages to about 3.4 kg for an 11-year-old student and 4.4 kg for a 13-year-old student,” states the Federation of Parent Councils (FCPE). Professionals also demand that middle school backpacks weigh no more than 4.5 kilograms.

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Regarding roller backpacks, researchers from Spain and the UK have determined the maximum weight for a wheeled backpack for children. According to findings published in the journal Applied Ergonomics in 2019, these models should not exceed 20% of a child’s weight. Professionals also warn about the heavy fixed weight of the wheel frames which often force the child to twist their back to pull or carry the bag up stairs.

What is the actual weight of a student’s backpack?

A report by the Federation of Parent Councils (FCPE) indicates that the average weight of a backpack is 8.5 kg, which is about 20% of a 6th-grade student’s body weight, equivalent to a 15 kg load for an adult. This is twice the official recommendation. Although there is no more recent national study, local weigh-ins conducted by schools consistently show an average weight between 7 kg and 9.5 kg depending on the school day schedule, indicating that the situation remains stagnant. Moreover, today’s children spend more time sitting in front of screens, which weakens the abdominal and back muscles, making the back even more susceptible to daily loads.

What is the average weight of an empty backpack?

Depending on the model, an empty backpack can weigh up to 3 kg. For a rolling backpack, add the weight of the wheels and metal components like the handle. Experts recommend choosing backpacks that weigh no more than 1 to 1.5 kg when empty (especially in first grade), with a targeted capacity of 10 to 20 liters depending on the grade level, to avoid a weight disadvantage even before filling it.

What are solutions to lighten the weight of the backpack?

To reduce the weight of students’ backpacks and thus ease their back strain, various solutions can be implemented:

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• Choose a lightweight, ergonomic backpack model. It should be suitable for the child’s age, grade level, and body type, and it should be easy to handle.
• Ensure the backpack is equipped with broad, padded, adjustable straps, a reinforced back, or a waist belt.
• Each evening, check your child’s backpack and the items they include. Teach them to carry only essentials to avoid overloading.
• Place heavier items (like large binders or textbooks) in the compartment closest to the child’s back to balance the center of gravity.

How to properly wear a school backpack?

Teaching a child how to properly wear their backpack can prevent back pain, especially since they are often still growing. Studies in biomechanics have shown that the duration and position of carrying have a greater impact than the weight itself. The habit of loosening the straps to wear the bag low on the back or using only one strap shifts the center of gravity backwards, forcing the child to thrust their head and neck forward. This increases the compression forces on the lumbar vertebrae by 50 to 120%. Furthermore, a 5 kg backpack worn for 45 minutes of walking or waiting at the bus stop causes more muscle fatigue and spinal pain than a 7 kg bag carried for just 10 minutes, for example.

Before placing the bag on their shoulders or setting it on the ground, the child should bend both knees and lift the load close to their body. It’s also crucial to wear the backpack with both straps over the shoulders to evenly distribute the weight across the back and keep the back straight.

What are the consequences of a too-heavy backpack for a child?

A backpack that’s too heavy can have serious health consequences for a child, mainly affecting the back: risk of scoliosis, respiratory compression, imbalance while walking, etc. These effects can persist into adulthood.