Effect of noninvasive transspinal direct current electrical stimulation of cervical enlargement on the excitability of different hand muscles

Key Points

• The aim is to evaluate how noninvasive transspinal electrical stimulation affects the excitability of various hand muscles.
• Noninvasive electrical stimulation was applied to the cervical enlargement region.
• Different hand muscles were assessed for excitability changes.
• Electrodes' placement was carefully determined for optimal effects.
• Stimulation produced unique effects on muscle excitability.
• Specific hand muscles showed selective responses to the stimulation protocol.