Table 2 Kinematic variables

Virtual Piano Trainer

Finger Fractionation (deg)^a

23.3 (18.8)

33.0 (10.2)

5.7

0.044

Time to Press Each Key (sec)

5.82 (2.4)

4.72 (1.6)

5.4

0.04

Accuracy^a

0.44 (0.17)

0.40 (0.23)

0.54

0.48

Hammer Task

Time per Cylinder (sec)

31 (19)

15 (7)

13.6

0.005

Arm Endpoint Path Length (m)

1.2 (.62)

0.72 (.23)

14.7

0.003

Arm Endpoint Smoothness, *10³

62.03 (86.7)

15.1(16.4)

5.2

0.05

Arm Endpoint Deviation

87 (50)

42 (19)

19.2

0.002

Peak MPJ Extension

22.5 (16)

19.5 (19)

2.42

0.16