Table 1.

Clinical details.

Pat. no.	Gender	Age	Lesion site	Lesion volume (mm³)	ARAT^a	ARAT^a	ARAT^a	Motor score^b	Motor score^b	Motor score^b
					Session 1	Session 2	Session 3	Session 1	Session 2	Session 3
1	m	64	R CR	156	50	57	57	−0.11	0.25	0.15
2	f	84	L CR, PG	35168	0	11	53	−2.61	−1.93	0.06
3	m	59	L IC	6575	54	56	57	0.19	0.44	0.29
4	m	53	R PG	9220	54	57	57	0.81	0.83	0.68
5	f	77	R CR, BG, IC	39719	53	53	–	0.35	0.42	–
6	m	61	L IC, thalamus	3737	55	57	57	0.43	0.60	0.80
7	f	69	L IC	10234	38	41	47	0.04	0.23	0.61
8	m	72	L IC	1377	56	57	57	0.96	0.70	0.94
9	m	69	R CR	2880	56	57	57	0.67	0.55	0.75
10	m	68	L IC	2313	43	44	57	0.06	0.28	−0.03
11	f	59	R IC	5282	0	0	–	−2.61	−2.45	–
12	m	64	R PG	10790	28	49	55	−1.16	−0.36	−0.02
Mean (SD)		67 (9)		10621 (13030)	41 (21)	45 (19)	55 (3)

Session 1 (median: 2 days post-stroke), session 2 (median: 11 days), session 3 (median: 4 months). BG, basal ganglia; CR, corona radiata; IC, internal capsule; L, left; PG, precentral gyrus; R, right.

Action research arm test score for the affected hand (maximum score: 57).

Factor values from the first principal component resulting from a PCA of the ARAT score of the affected hand and the grip force index. Note that negative values do not imply deterioration of motor performance but poorer motor performance compared to the whole group.