In addition, Avantika et al. studied a group of young and healthy subjects with no diagnosed posture or speech disorders, but who were considered to be at high risk because they exhibited inappropriate daily habits by carrying heavy backpacks equivalent to 10% to 20% of their body weight, which conditions significant changes in postural behavior and the gravitational position of the center of body mass causing anterior translation of the head, shoulders, and upper back region.
Complementariamente, Avantika et al., estudiaron un grupo de sujetos jóvenes sanos, sin trastornos posturales ni de habla diagnosticados, sin embargo, considerados de alto riego por presentar hábitos cotidianos inadecuados en relación al uso de una mochila pesada equivalente al 10 - 20% del peso corporal, lo que condiciona cambios significativos en el equilibrio postural y la posición gravitacional del centro de masa del cuerpo provocando una traslación anterior de la cabeza, hombros y la región superior de la espalda.