Table 5.

Validity

	FMA-UL	ARAT	BI
Duration	−0.8507***	−0.7716***	− 0.6738***
Velocitymean	0.8227***	0.7587***	0.6340***
Lengthtot	0.8551***	0.7268***	0.7139***
Lenght1	0.7700***	0.6273***	0.6423***
Lenght2	0.6259***	0.5904***	0.4419**
Lenght3	0.5093***	0.4613***	0.4195**
Lenght4	0.7172***	0.5689***	0.6021***
Lenght5	0.8047***	0.6666***	0.6638***
Lenght6	0.8026***	0.7075***	0.6914***
Lenght7	0.8267***	0.6979***	0.6404***
Lenght8	0.8584***	0.7196***	0.6241***
Score	0.8443***	0.7384***	0.7417***
Worktot	0.3472**	0.3672**	0.1700
Worktan	0.8188***	0.6942***	0.6564***

Spearman’s correlation coefficient between the robotic indices and the following clinical scale: Upper limb subscale of the Fugl-Meyer Assessment (FMA-UL), Action Research Arm Test (ARAT), and Barthel Index (BI). The symbols **, and *** indicate a p value less than 0.01 and 0.001 respectively