Number of motor units in human abductor hallucis

Richard K. Johns, Andrew J. Fuglevand

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Motor unit number was estimated for the human abductor hallucis (AH) muscle in 11 subjects by counting the number of increments in surface electromyographic responses to progressive increases in current-pulse amplitude applied to the muscle-nerve. The average motor unit count for AH (43) was substantially smaller than that estimated for other human muscles. Consequently, motor unit activity should be readily recordable up to high forces in AH, making it well suited for studies of recruitment and rate coding.

Original languageEnglish (US)
Pages (from-to)895-896
Number of pages2
JournalMuscle and Nerve
Issue number6
StatePublished - Jun 2011


  • Abductor hallucis
  • EMG
  • Motor unit
  • Motor unit number estimation
  • Muscle

ASJC Scopus subject areas

  • Physiology
  • Clinical Neurology
  • Cellular and Molecular Neuroscience
  • Physiology (medical)


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