Validity and Reliability of Upper Limb Functional Assessment Using the Microsoft Kinect V2 Sensor
Table 3
Validity of the angular waveforms for the selected functional tasks. The mean (SD) coefficient of multiple correlation (CMC) and the root mean squared error (RMSE) between the Kinect V2-based markerless system and the Vicon-based system of the upper limb waveforms are presented.
Hand to contralateral shoulder
Hand to mouth/drinking
Combing hair
Hand to back pocket
Shoulder F/E
Shoulder Add/Abd
Shoulder IR/ER
Elbow F/E
Shoulder F/E
Shoulder Add/Abd
Shoulder IR/ER
Elbow F/E
Shoulder F/E
Shoulder Add/Abd
Shoulder IR/ER
Elbow F/E
Shoulder F/E
Shoulder Add/Abd
Shoulder IR/ER
Elbow F/E
CMC
0.88 (0.09)
0.82 (0.11)
0.84 (0.07)
0.94 (0.05)
0.82 (0.09)
0.80 (0.2)
0.58 (0.20)
0.92 (0.04)
0.81 (0.11)
0.78 (0.13)
0.54 (0.17)
0.87 (0.05)
0.93 (0.05)
0.69 (0.27)
0.55 (0.27)
0.90 (0.13)
RMSE
11.04 (5.16)
5.62 (1.37)
13.40 (3.00)
15.48 (6.04)
25.61 (7.56)
6.11 (2.85)
1.64 (5.20)
18.16 (4.95)
41.40 (9.49)
12.31 (2.65)
29.38 (6.76)
23.75 (4.32)
7.16 (2.87)
5.76 (2.76)
12.36 (3.74)
10.43 (6.21)
Note: shoulder F/E, shoulder Add/Abd, shoulder IR/ER, and elbow F/E represent joint angles of shoulder flexion/extension, shoulder adduction/abduction, shoulder internal/external rotation, and elbow flexion, respectively.
