Absolute and proportional resting EMG levels in muscle contraction and migraine headache patients

A. van Boxtel*, P. Goudswaard, K. Janssen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

23 Citations (Scopus)

Abstract

In this study, resting EMG levels were measured in the frontalis and temporalis muscle in patients suffering from muscle contraction headache, migraine, or mixed muscle contraction‐migraine headache. The EMG levels of these groups were never significantly higher than those of a control group of subjects without headaches. Significantly higher levels, however, were found in both muscles in the migraine and mixed headache groups if the resting EMG levels were expressed as a percentage of the EMG level during maximal contraction. There was a tendency for proportional EMG levels of both muscles in the muscle contraction headache group to be significantly elevated. Headache patients generally showed lower maximal EMG levels than control subjects. The significance of this finding is discussed in relation to the etiology of the headaches. It is concluded that proportional EMG levels are a better index of the state of contraction than absolute EMG levels and are preferable in investigations of headache.

Original languageEnglish
Pages (from-to)215-222
JournalHeadache: The Journal of Head and Face Pain
Volume23
Issue number5
DOIs
Publication statusPublished - Sep 1983

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