Health · Medical Research · 1 hr ago
Study examines school bag weight and back pain in children
Researchers examined school bags and back pain among 221 students in grades 1–9 at three schools in the South Moravian Region of the Czech Republic.
The children’s bags weighed an average of 4.87 kilograms, or 14.49% of their body weight.
Recommendations say a school bag should weigh no more than 10%–15% of a child’s body weight.
Nearly half reported back pain in the past month, but the study did not assess how severe the pain was or how much it affected daily life.
Researchers also considered factors such as how long children carried their bags and how heavy the bags felt.
The study looked for links between these factors and pain; it does not establish that bags caused the pain.
A study of 221 schoolchildren in the Czech Republic found that their bags weighed an average of 14.49% of their body weight.
Nearly half of the participants reported back pain in the month before the study assessment.
Researchers examined links between bag load, perceived heaviness, carrying duration and back pain.
The study did not assess pain severity or its effect on daily functioning.
The article says earlier research has found inconsistent associations between school bag load and musculoskeletal symptoms.
- Who
- Researchers studied 221 students in grades 1–9.
- What
- The study examined school bag weight and its relationship to back pain and other factors.
- When
- Published on October 23, 2026. The assessment date is not stated.
- Where
- Three schools in the South Moravian Region of the Czech Republic.
- Why
- To examine relationships among school bag load, perceived heaviness, body measurements, carrying duration and back pain.
This story does not have two clearly opposing sides.
Researchers assessed students’ body measurements, school bags, carrying duration, perceived heaviness and reported back pain.
News-Medical published an article about the study in Scientific Reports.
- Participants
- 221 students
- Location
- Three schools in the South Moravian Region, Czech Republic
- Mean age
- 9.48 years
- Average bag weight
- 4.87 kg
- Relative bag load
- 14.49% of body weight on average
- Back pain
- 109 students (49.3%) reported pain in the past month