TABLE II.
Muscle-specific measurements of the shear wave speed
| Muscle | vSH (±SD) [m/s] | Test Statistics (p-value) | ||||
|---|---|---|---|---|---|---|
| Name | Acronym | Flex | Ext | Rest | ||
| Extensors | Ext>Rest | Ext>Flex | ||||
| Abductor Pollicis Longus | APL | 2.48 (0.19) | 3.27 (.042) | 2.67 (0.10) | 3.83 (0.002) | 3.12 (0.007) |
| Extensor Carpi Radialis Brevis | ECRB | 2.05 (0.09) | 2.85 (0.40) | 2.24 (0.13) | 4.34 (0.001) | 3.25 (0.006) |
| Extensor Carpi Radialis Longus | ECRL | 2.16 (0.15) | 2.41 (0.10) | 2.01 (0.07) | 3.19 (0.006) | 7.18 (<0.001) |
| Extensor Carpi Ulnaris | ECU | 2.92 (0.21) | 4.10 (0.19) | 2.67 (0.17) | 9.40 (<0.001) | 12.49 (<0.001) |
| Extensor Digirotum Communis | EDC | 2.02 (0.15) | 3.15 (0.74) | 2.67 (0.15) | 3.35 (0.005) | 1.40 (0.100) |
| Extensor Digiti Minimi | EDM | 2.46 (0.36) | 3.87 (0.72) | 3.18 (0.17) | 3.90 (0.002) | 2.05 (0.037) |
| Extensor Pollicis Longus | EPL | 3.17 (0.21) | 3.95 (0.38) | 2.96 (0.15) | 3.99 (0.002) | 5.41 (<0.001) |
| Flexors | Flex>Rest | Flex>Ext | ||||
| Flexor Carpi Radialis | FCR | 2.22 (0.08) | 1.89 (0.10) | 1.94 (0.04) | 5.84 (<0.001) | 7.26 (<0.001) |
| Flexor Carpi Ulnaris | FCU | 2.92 (0.21) | 3.55 (0.85) | 2.47 (0.05) | −1.60 (0.926) | 4.72 (<0.001) |
| Flexor Digitorum Profundus | FDP | 2.45 (0.12) | 2.59 (0.23) | 2.10 (0.05) | −1.25 (0.876) | 5.90 (<0.001) |
| Flexor Digitorum Superficialis | FDS | 2.47 (0.06) | 2.25 (0.16) | 2.08 (0.06) | 2.90 (0.01) | 10.88 (<0.001) |
| Flexor Pollicis Longus | FPL | 2.02 (0.06) | 2.15 (0.08) | 2.03 (0.02) | −3.00 (0.991) | −0.35 (0.633) |
| Palmaris Longus | PL | 2.41 (0.11) | 1.93 (0.12) | 1.73 (0.06) | 6.28 (<0.001) | 11.87 (<0.001) |
| Neither | ||||||
| Brachioradialis | Br | 1.83 (0.10) | 1.82 (0.06) | 1.77 (0.04) | - | - |