Wearable Lumbar-Motion Monitoring Device with Stretchable Strain Sensors

Table 1

Range of motion values and means and SDs of residual errors between measured and reference displacements and rotation angles in preliminary tests with the parallel-sensor mechanism on a bench.

Axis	Displacement (mm)			Angle (°)
				Flexion-extension	Side bending	Rotation
ROM	56.69	131.97	84.56	51.24	22.13	67.35
Mean	3.23	5.42	2.79	4.22	1.04	1.52
SD	3.24	5.43	2.36	3.43	1.02	2.17