Firing rate analysis using decomposition-enhanced spike triggered averaging in the quadriceps femoris

Robin A. Conwit, Brian Tracy, Alison Cowl, Megan McHugh, Dan Stashuk, William F. Brown, E. Metter

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Electromyographic signals detected from the quadriceps femoris during various constant force contractions were decomposed to identify individual motor unit discharges and mean firing rates (FRs). Subject and group mean FRs were calculated for each force level. Mean FR values and FR variability increased with force. Individual, subject, and group mean FRs showed slight increases until 30% of maximum voluntary contraction and larger increases thereafter. Findings are discussed in relation to motor unit recruitment, frequency modulation, and fatigue.

Original languageEnglish (US)
Pages (from-to)1338-1340
Number of pages3
JournalMuscle and Nerve
Volume21
Issue number10
DOIs
StatePublished - 1998
Externally publishedYes

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Neurophysiological Recruitment
Quadriceps Muscle
Fatigue

All Science Journal Classification (ASJC) codes

  • Clinical Neurology
  • Neuroscience(all)

Cite this

Firing rate analysis using decomposition-enhanced spike triggered averaging in the quadriceps femoris. / Conwit, Robin A.; Tracy, Brian; Cowl, Alison; McHugh, Megan; Stashuk, Dan; Brown, William F.; Metter, E.

In: Muscle and Nerve, Vol. 21, No. 10, 1998, p. 1338-1340.

Research output: Contribution to journalArticle

Conwit, Robin A. ; Tracy, Brian ; Cowl, Alison ; McHugh, Megan ; Stashuk, Dan ; Brown, William F. ; Metter, E. / Firing rate analysis using decomposition-enhanced spike triggered averaging in the quadriceps femoris. In: Muscle and Nerve. 1998 ; Vol. 21, No. 10. pp. 1338-1340.
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