EMG Activity in Pericranial Muscles During Postural Variation and Mental Activity in Healthy Volunteers and Patients With Chronic Tension Type Headache
Article first published online: 20 MAY 2005
Headache: The Journal of Head and Face Pain
Volume 31, Issue 5, pages 321–324, May 1991
How to Cite
Schoenen, J., Gerard, P., De Pasqua, V. and Juprelle, M. (1991), EMG Activity in Pericranial Muscles During Postural Variation and Mental Activity in Healthy Volunteers and Patients With Chronic Tension Type Headache. Headache: The Journal of Head and Face Pain, 31: 321–324. doi: 10.1111/j.1526-4610.1991.hed3105321.x
- Issue published online: 20 MAY 2005
- Article first published online: 20 MAY 2005
- Accepted for Publication: February 10, 1991.
- Cited By
- Tension type headache;
EMG activity was recorded over frontalis, temporalis and trapezius muscles in a supine position, a standing position and during a mental task in 32 female patients suffering from chronic tension-type headache and in 20 healthy volunteers. Measurements in patients were made before and after biofeedback therapy. All EMG levels were on average significantly higher in patients than in controls. 62.5% of patients had at least one abnormal EMG level, but only 34% were beyond the normal range, if 1 muscle and I recording condition was considered. EMG levels were not correlated with headache severity, anxiety or response to biofeedback treatment. It is therefore suggested that pericranial EMG activity is not pathogenetic in chronic tension type headache, but merely one of several pathophysiologic changes, that are produced by a central dysfunction.