Table 3 Outcome of individual muscle testing at baseline and at follow-up. Analysis by Wilcoxon signed-rank test of the relation between findings at the two occasions (for subjects examined twice)
| Â | Intervention subjects. N = 69 | Â | Control subjects. N = 28 | Â | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
Muscle | Number with weakness at baseline | Number with weakness at follow-up | P | Number with weakness at baseline | Number with weakness at follow-up | P | ||||
| Â | Grade 4+ | Grade 4 or less | Grade 4+ | Grade 4 or less | Â | Grade 4+ | Grade 4 or less | Grade 4+ | Grade 4 or less | Â |
Pectoral | 0 | 0 | 0 | 0 | - | 0 | 0 | 0 | 0 | - |
Deltoid | 9 | 3 | 9 | 0 | 0.23 | 8 | 1 | 1 | 0 | 0.005 |
Latissimus | 3 | 0 | 1 | 0 | 0.15 | 5 | 0 | 1 | 0 | 0.10 |
Infraspinatus | 6 | 0 | 3 | 0 | 0.18 | 2 | 0 | 1 | 0 | 0.32 |
Biceps | 7 | 2 | 8 | 0 | 0.32 | 7 | 1 | 2 | 0 | 0.03 |
Triceps | 24 | 1 | 20 | 0 | 0.20 | 12 | 1 | 11 | 0 | 0.37 |
Radial flexor of wrist | 12 | 1 | 11 | 0 | 0.58 | 7 | 1 | 7 | 0 | 0.71 |
Short radial extensor of wrist | 10 | 2 | 9 | 0 | 0.15 | 8 | 0 | 6 | 0 | 0.53 |
Ulnar extensor of wrist | 18 | 1 | 11 | 0 | 0.08 | 7 | 0 | 10 | 0 | 0.37 |
Short abductor of thumb | 18 | 1 | 12 | 0 | < 0.05 | 7 | 1 | 8 | 0 | 0.94 |
Abductor of small finger | 5 | 0 | 3 | 0 | 0.32 | 0 | 0 | 0 | 0 | - |