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

Matthew C. Hoch; Bentley A. Krause

doi:10.1080/00207450802480309

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

Matthew C. Hoch, Bentley A. Krause

Athletic Training and Clinical Nutrition

Research output: Contribution to journal › Article › peer-review

10 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 language	English
Pages (from-to)	345-352
Number of pages	8
Journal	International Journal of Neuroscience
Volume	119
Issue number	3
DOIs	https://doi.org/10.1080/00207450802480309
State	Published - Mar 2009

Keywords

Hoffmann reflex
Motoneuron
Muscle response reliability
Soleus
Spinal reflex

ASJC Scopus subject areas

Neuroscience (all)

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10.1080/00207450802480309

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

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.",

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AB - 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.

KW - Hoffmann reflex

KW - Motoneuron

KW - Muscle response reliability

KW - Soleus

KW - Spinal reflex

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

Abstract

Keywords

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