Table 1.
The 38 individual muscles per leg were combined into 34 groups based on anatomical function. The excitation pattern for each muscle group was either based on experimentally derived modules or defined by a bimodal pattern (Hall et al., 2011). The control group had four modules (C1-C4) which were used to control the muscles on both legs. Each of the hemiparetic groups had three modules (A1-A3, B1-B3) that controlled the muscles on the paretic leg while the nonparetic leg muscles were controlled using bimodal patterns. All muscles within a module received the same timing but the magnitude was allowed to vary.
| Excitation Pattern Type |
||||
|---|---|---|---|---|
| Muscle Name | Muscle Group | Control | Group A | Group B |
| Iliacus Psoas |
IL IL |
Bimodal | Bimodal | Bimodal |
| Adductor Longus | AL | Bimodal | Bimodal | Bimodal |
| Adductor Brevis | AB | Bimodal | Bimodal | Bimodal |
| Pectineus | PECT | Bimodal | Bimodal | Bimodal |
| Quadratus Femoris | QF | Bimodal | Bimodal | Bimodal |
| Superior Adductor Magnus | AM | |||
| Middle Adductor Magnus | AM | Bimodal | Bimodal | Bimodal |
| Inferior Adductor Magnus | AM | |||
| Sartorius | SAR | Bimodal | Bimodal | Bimodal |
| Rectus Femoris | RF | C1,C3 | A1,A2 | B2, B3 |
| Vastus Medialis | MVAS | C1 | Al | B3 |
| Vastus Lateralis Vastus Intermedius |
LVAS LVAS |
C1 | Al | B3 |
| Anterior Gluteus Medius | GMED1 | Cl | Al | B1,B3 |
| Middle Gluteus Medius | GMED2 | C1 | Al | B1,B3 |
| Posterior Gluteus Medius | GMED3 | C1 | Al | B1,B3 |
| Piriformus | PIRI | Bimodal | Bimodal | Bimodal |
| Gemellus | GEM | Bimodal | Bimodal | Bimodal |
| Anterior Gluteus Minimus | GMIN1 | Cl | Al | B1,B3 |
| Middle Gluteus Minimus | GMIN2 | Cl | Al | B1,B3 |
| Posterior Gluteus Minimus | GMIN3 | Cl | Al | B1,B3 |
| Tensor Fascia Lata | TFL | Bimodal | Bimodal | Bimodal |
| Anterior Gluteus Maximus | GMAX1 | Cl | Al | B1,B3 |
| Middle Gluteus Maximus | GMAX2 | Cl | Al | B1,B3 |
| Posterior Gluteus Maximus | GMAX3 | Cl | Al | B1,B3 |
| Semitendinosus | SM | C4 | A3 | B1,B3 |
| Semimembranosus | ST | C4 | A3 | B1,B3 |
| Gracilis | GRAC | C4 | A3 | B1,B3 |
| Biceps Femoris Long Head | BFLH | C4 | A3 | B1,B3 |
| Biceps Femoris Short Head | BFSH | C4 | A3 | B1,B3 |
| Medial Gastrocnemius | MGAS | C2 | Al | Bl |
| Lateral Gastrocnemius | LGAS | C2 | Al | Bl |
| Soleus | SOL | C2 | Al | Bl |
| Tibialis Posterior | TP | C2 | Bimodal | Bimodal |
| Flexor Digitorum Longus | FD | C2 | Bimodal | Bimodal |
| Tibialis Anterior | TA | C3 | A2 | B2 |
| Extensor Digitorum Longus | ED | C3 | Bimodal | Bimodal |