Efficacy of Sensory Electrical Stimulation Versus Alternating Electromyogram (EMG) On Functional Recovery Of Hand in Chronic Stroke Survivors :Randomized Controlled Trial

Sensory electrical stimulation, Transcutaneous electrical nerve stimulation (TENS) involves delivering electrical current through electrodes placed on the skin to manage pain. It can be applied at different frequencies, ranging from low (50 Hz). The intensity can be adjusted from sensory to motor levels. Sensory intensity is when the patient experiences a strong yet comfortable sensation without triggering muscle contraction

the device detects the EMG threshold value (peak muscle torque) of the target muscle and activates stimulation to enhance the patient's voluntary activation of the targeted muscle groups. It is used to assess peak muscle torque and deliver alternating and EMG-triggered stimulation. Surface electrodes are employed to detect electromyography in the affected muscle and administer electrical stimulation to the targeted muscle during treatment. The device stimulates the targeted muscles, after which the patient attempts to replicate the same movement until reaching the preset EMG feedback level