Implementation and Evaluation of a Dynamic Neck Brace Rehabilitation Device Prototype

Table 5

Symmetric traction about y-axis (flexion/extension).

Movement	Desired θ (deg)	Calculated θ (deg)	Measured θ (deg)
Flexion	−7	−6.99 ± 0.24	−7.80 ± 0.13
	−6	−5.85 ± 0.24	−6.59 ± 0.15
	−5	−5.08 ± 0.15	−5.07 ± 0.11
	−4	−3.95 ± 0.20	−4.39 ± 0.10
	−3	−2.86 ± 0.21	−3.21 ± 0.13
	−2	−1.78 ± 0.28	−2.08 ± 0.19
	−1	−0.71 ± 0.35	−0.78 ± 0.21
Extension	1	1.01 ± 0.22	0.48 ± 0.31
	2	2.04 ± 0.15	1.57 ± 0.23
	3	2.99 ± 0.16	2.71 ± 0.12
	4	4.07 ± 0.09	3.85 ± 0.11
	5	5.19 ± 0.09	5.11 ± 0.11
	6	6.10 ± 0.22	6.05 ± 0.14
	7	7.24 ± 0.11	7.39 ± 0.12