Table 1.
Subject Characteristics (n = 33)
| mean ± SD | range/percent | normal | |
|---|---|---|---|
| Age (years) | 56.9 ± 10.2 | (31–77) | - |
| Gender | 19 males 14 females |
(58%) (42%) |
- |
| Time since stroke (days) | 18.6 ± 5.57 | (8–30) | - |
| Hand affected | 14 left 19 right |
(42%) (58%) |
- |
| Type of stroke | 32 ischemic 1 hemorrhagic |
(97%) (3%) |
- - |
| Subjects with identifiable acute lesiona | 20/33 | (61%) | - |
| Lesion location in subjects withidentifiable acute lesion | 3 Superficial cortical 10 Deep cortical Superficial & Deep 2 Brainstem |
(15%) (50%) (25%) (10%) |
- - - - |
| Lesion Size (largest aperture diameter)b | 7 ≤ 1.5cm 10 1.6-3.0 cm 3 > 3.0 cm |
(35%) (50%) (15%) |
- - - |
| Dominant hand affected | 17 | (52%) | - |
| Composite strength | 0.35 ± 0.36 | (0 – 1) | 0.93 – 1.07 |
| Shoulder pain | 0.76 ± 1.64 | (0 – 6) | 0 |
| Index finger joint position sense | 27 normal 6 impaired |
(90%) (10%) |
- - |
| Modified Ashworth Scale | 0.58 ± 0.67 | (0 – 3) | 0 |
| Action Research Arm Test | 26.4 ± 23.9 | (0 – 57) | 57 |
| Jebsen Test of Hand function (secs) | 418 ± 316 | (38 – 720) | 24 – 36 |
| Grip Strength (% unaffected side) | 29.6 ± 31.2 | (0 – 89) | 0.85 – 1.15 |
| Pinch Strength (% unaffected side) | 43.1 ± 43.4 | (0 – 152) | 0.94 – 1.06 |
| 9-Hole Peg test (pegs/sec) | 0.20 ± 0.27 | (0.0 – 0.79) | 0.77 – 0.99 |
| Stroke Impact Scale: Hand function | 19.9 ± 28.0 | (0 – 85) | 100 |
Values are means ± SD (range), or number (%)
a
20 Subjects had a definite acute lesion as seen on clinical CT or MR scan. 13 subjects were without a definitive acute lesion. These 13 subjects had clinical CT scans upon admission to the acute neurology service only, making it unlikely that an acute ischemic lesion could have been detected.
b
For multiple lesions, diameter of largest lesion reported.