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Peripheral electrical stimulation (PES) has been shown to boost activity-dependent neural plasticity by recruiting afferent fibers in conjunction with physiological activity. This study aimed to explore the acute changes in motor unit (MU) recruitment and derecruitment discharge rate (DR) following a 20-min PES session in healthy volunteers. High-density electromyography decomposition from flexor carpi radialis was used to identify MU DR patterns before and after PES. Recruitment and derecruitment DRs were increased when PES was delivered in-phase with muscle contraction. These results expand our knowledge on the effects of PES as a neural rehabilitation tool to treat motor disorders.

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Assessment of Motor Units’ Recruitment/Derecruitment Discharge Rate after Phase-Dependent Peripheral Electrical Stimulation

  • 会议论文

  • 发表日期：

    2025年

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  • Míriam Múgica-Esteve,
  • Cristina Montero-Pardo,
  • Blanca Larraga-García,
  • Álvaro Gutiérrez,
  • Filipe Oliveira Barroso

摘要

Peripheral electrical stimulation (PES) has been shown to boost activity-dependent neural plasticity by recruiting afferent fibers in conjunction with physiological activity. This study aimed to explore the acute changes in motor unit (MU) recruitment and derecruitment discharge rate (DR) following a 20-min PES session in healthy volunteers. High-density electromyography decomposition from flexor carpi radialis was used to identify MU DR patterns before and after PES. Recruitment and derecruitment DRs were increased when PES was delivered in-phase with muscle contraction. These results expand our knowledge on the effects of PES as a neural rehabilitation tool to treat motor disorders.