Which muscles showed improvements with e-stim according to the reported material?

• A. Quadriceps and Hamstrings
• B. Gastroc and Tibialis Anterior
• C. Gluteus Medius
• D. Soleus alone

Answer: (B)

The main idea is that electrical stimulation helps activate specific ankle muscles to improve gait function, and the material reports improvements in muscles that drive both actions at the ankle.

Gastroc (gastrocnemius) and tibialis anterior are the two that showed improvement because they control the two key directions at the ankle: tibialis anterior facilitates dorsiflexion to clear the foot during swing, while gastrocnemius facilitates plantarflexion for push-off in stance. When both are more responsive to stimulation, overall ankle control during walking improves, which is often what rehabilitation aims to achieve.

The other options involve muscles less directly tied to this ankle-focused improvement pattern in the material, such as knee extensors (quadriceps), knee flexors (hamstrings), hip abductors (gluteus medius), or a single calf muscle (soleus) without the complementary agonist pair.