Table 2.

Measurement differences between the outREACH sensor and Vicon systems.

	Coefficient of variation %	Mean difference	Lower limit of agreement	Upper limit of agreement
ARAT block
Movement time	3.30	−16.00	−200.00	170.00
Spectral arc length	−2.40	0.00	−0.11	0.11
Peak velocity	3.20	18.00	−55.00	92.00
Drink glass
Movement time	2.70	5.00	−220.00	230.00
Spectral arc length	−8.50	−0.07	−0.53	0.38
Peak velocity	8.40	−82.00	−220.00	51.00
Pour water
Movement time	3.20	11.00	−290.00	310.00
Spectral arc length	−7.70	0.10	−0.32	0.53
Peak velocity	13.00	−45.00	−230.00	140.00