Intersession reliability of H:M ratio is greater than the H-reflex at a percentage of M-max

Matthew C. Hoch, Bentley A. Krause

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The purpose of this study was to evaluate the intersession reliability of the soleus Hoffmann reflex using two methods of normalizing motoneuron excitability over time. Ten subjects reported to the laboratory on two separate occasions. Soleus Hoffmann reflexes and muscle responses were evaluated at maximal amplitude ratios and at stimuli producing ∼20% of the maximal muscle response. An intraclass correlation coefficient (ICC 2, 1) found strong intersession reliability for both measurement techniques. Assessing motoneuron activation using maximal amplitude ratios demonstrated a robust ICC of 0.979 compared to an ICC of 0.882 when the Hoffmann reflex was assessed at ∼20% of the maximal muscle response.

Original languageEnglish
Pages (from-to)345-352
Number of pages8
JournalInternational Journal of Neuroscience
Volume119
Issue number3
DOIs
StatePublished - Mar 2009

Keywords

  • Hoffmann reflex
  • Motoneuron
  • Muscle response reliability
  • Soleus
  • Spinal reflex

ASJC Scopus subject areas

  • Neuroscience (all)

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