Effects of Hand Vibration on Motor Output in Chronic Hemiparesis
Table 1
Characteristics and clinical evaluations of the hemiparetic subjects.
Patient
Age (years)
Sex
Hemi. side
Lesion location
Time since AVC (months)
FM hand (0–24)
SW
128 Hz tuning fork (s)
VT (µ)
PP (0–10)
Spasticity index (0–16)
BB Hemi. side
NHP Hemi. side
MT (%)
MEP rest (µV)
MEP vib (µV)
MVC (N)
1
49
F
R
Middle cerebral artery
69
0
3.5
11
17.4
10
6
NA
NA
NR
NR
620
4.9
2
60
F
L
Middle cerebral artery
25
1
3.4
22
2.2
7
9
NA
NA
Exc
Exc
Exc
11.3
3
53
F
L
Middle cerebral artery
33
3
4.4
15
7.6
0
12
NA
NA
NR
NR
NR
14.1
4
51
M
L
Middle cerebral artery
43
4
3.6
16
16.0
7
12
NA
NA
NR
NR
NR
39.1
5
22
M
L
Parietooccipital
64
8
4.7
19
7.9
4
12
4
NA
NR
NR
332
11.3
6
28
F
R
Basilar artery
57
14
3.0
23
3.0
10
12
15
NA
NR
NR
260
24.0
7
27
F
R
Middle cerebral artery
65
16
3.1
21
0.7
10
10
11
NA
NR
NR
NR
22.2
8
57
M
R
Lacunar lesion of the internal capsule
12
16
3.4
24
2.9
10
5
14
NA
NR
NR
101
18.8
9
47
F
L
Posterior communicating artery
39
17
3.4
7
21.9
0
7
17
NA
54
86
106
4.7
10
63
M
R
Middle cerebral artery
30
18
3.3
18
3.0
9
5
34
51
35
463
1881
61.8
11
52
M
L
Middle cerebral artery
15
19
3.3
25
6.3
9
6
32
65
Exc
Exc
Exc
77.7
12
58
M
R
Parietal
14
20
5.4
7
10.1
0
6
13
NA
30
522
1016
25.3
13
56
M
R
Middle cerebral artery
68
20
2.7
14
10.9
9
4
37
40
Exc
Exc
Exc
49.8
14
58
M
L
Parietooccipital
29
21
3.7
22
3.6
8
1
38
39
48
54
70
59.9
15
41
F
R
Basal ganglia
16
22
3.4
17
3.2
10
4
44
32
40
357
457
57.8
16
37
F
L
Middle cerebral artery
33
23
4.2
14
7.5
6
5
45
30
Exc
Exc
Exc
26.2
17
38
M
R
Middle cerebral artery
44
24
4.5
17
12.1
10
5
48
23
39
871
1780
93.4
18
32
M
L
Middle cerebral artery
56
24
2.6
24
3.3
10
4
39
32
34
600
1793
70.5
19
32
F
R
Middle cerebral artery
36
24
3.4
23
2.5
10
6
43
23
Exc
Exc
Exc
44.0
Bold numbers: <2.5 SD> mean control values. FM, Fugl-Meyer; M, male; F, female; R, right; L, left; SW, Semmes Weinstein; VT, vibration threshold; PP, proprioception; BB, Box and Block; NHP, Nine Hole Peg; MT, motor threshold; MEP rest, average amplitude of motor evoked potential at rest (before vibration, C1); MEP vib, average amplitude of motor evoked potential during vibration (C2); MVC, average maximal voluntary contraction during a pinch lateral grip force; NA, not able; NR, no response; Exc, excluded for TMS protocol.
