Journal of Sensors / 2017 / Article / Tab 3

Research Article

A Study on the Effects of Heavy Backpack and Development of a Preventative Prototype

Table 3

Threshold bend for different parts of the spine that is responsible for causing pain.

Section of spine Range of values (degree) What causes pain

Thoracic [13]20–40Lower than 20
Lumbar [13]10–20Higher than 20
Trunk flexion [14]0–30 (forward relative
to vertical)
No significant
correlation