Researchers identify maximum weight children should carry in school backpacks

(University of Granada) Scientists from the University of Granada and Liverpool John Moores University (UK) have established that school children who use backpacks should avoid loads of more than 10% of their body weight -- and those who use trolleys, 20% of their body weight.

from EurekAlert! - Social and Behavioral Science https://ift.tt/3250k5N