Cervical Coupling Motion Characteristics in Healthy People Using a Wireless Inertial Measurement Unit

Table 1

Cervical range of motion on the natural test and the neutral test.

Plane	Movement	Natural test (°)		Neutral test (°)
		Mean ± SD	ICC (95% CI)	Mean ± SD	ICC (95% CI)
Sagittal	Total	116.70±17.26	0.98 (0.96–0.99)	106.76±20.33	0.99 (0.97–1.00)
	Extension	57.23±8.80	0.97 (0.93–0.99)	52.75±9.25	0.95 (0.90–0.98)
	Flexion	58.48±11.83	0.98 (0.96–0.99)	54.02±13.46	0.98 (0.97–0.99)
Coronal	Total	89.42±10.11	0.97 (0.95–0.99)	83.69±13.79	0.99 (0.98–1.00)
	Left	44.15±6.72	0.97 (0.93–0.99)	42.17±7.33	0.98 (0.96–0.99)
	Right	45.28±4.97	0.98 (0.95–0.99)	41.52±7.11	0.98 (0.97–0.99)
Transverse	Total	143.29±17.02	0.99 (0.97–0.99)	134.87±22.43	0.98 (0.97–0.99)
	Left	69.67±10.87	0.99 (0.97–0.99)	64.89±11.74	0.98 (0.96–0.99)
	Right	73.62±10.81	0.99 (0.97–0.99)	69.98±13.99	0.99 (0.98–1.00)

SD: standard deviation; ICC: intraclass correlation coefficient; CI: confidence interval.