Single measurement reliability and reproducibility of volitional and magnetically-evoked indices of neuromuscular performance in adults

C. Minshull*, N. P. Gleeson, R. G. Eston, A. Bailey, D. Rees

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

This study documents intra-session and inter-day reproducibility (coefficient of variation [V%]) and single measurement reliability (intra-class correlations [R(1)]; standard error of a single measurement [SEM%] [95% confidence limits]) of indices of neuromuscular performance elicited during peripheral nerve magnetic stimulation. Twelve adults (five men and seven women) completed 3 assessment sessions on 3 days, during which multiple assessments of knee flexor volitional and magnetically-evoked indices of electromechanical delay (EMD(V); EMD(E)), rate of force development (RFD(V); RFD(E)), peak force (PF(V); P(T)F(E)), and compound muscle action potential latency (LAT(E)) and amplitude (AMP(E)) were obtained. Results showed that magnetically-evoked indices of neuromuscular performance offered statistically equivalent levels of measurement reproducibility (V%: 4.3-31.2%) and reliability (R(1): 0.98-0.51) compared to volitional indices (V%: 3.7-25.2%; R(1): 0.98-0.64), which support the efficacy of both approaches to assessment and the indices PF(V), EMD(V), EMD(E) and LAT(E) offer the greatest practical utility for assessing neuromuscular performance. (C) 2008 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)1013-1023
Number of pages11
JournalJournal of Electromyography and Kinesiology
Volume19
Issue number5
DOIs
Publication statusPublished - Oct 2009

Keywords / Materials (for Non-textual outputs)

  • Magnetic stimulation
  • Reproducibility
  • Reliability
  • Neuromuscular performance
  • ELECTROMECHANICAL DELAY
  • CLINICAL-APPLICATION
  • QUADRICEPS STRENGTH
  • KNEE LIGAMENTS
  • STIMULATION
  • NERVE
  • FATIGUE
  • REHABILITATION
  • FLEXORS
  • UTILITY

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