The relationship between frontalis muscle activity and self-reports of headache pain |
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| Authors: | Leonard H. Epstein Gene G. Abel Frank Collins Lynn Parker Paul M. Cinciripini |
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| Affiliation: | University of Pittsburgh School of Medicine U.S.A.;University of Tennessee School of Medicine U.S.A.;Auburn University U.S.A.;Johns Hopkins School of Medicine U.S.A.;University of Pittsburgh School of Medicine, U.S.A. |
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| Abstract: | The relationship between levels of frontalis muscle activity and self-reports of pain was evaluated in two studies. In Study I frontalis muscle activity and self-reports of pain collected during biofeedback treatment of muscular contraction headache clients were correlated. In Study II frontalis EMG activity was increased and decreased using biofeedback techniques while concurrent reports of headache pain were recorded. The results of Study I indicated a significant relationship between EMG activity and reported headache pain for only two of the five subjects studied. The biofeedback procedures in Study II were associated with reliable increases and decreases in EMG activity. Concordance between EMG and pain reports occurred only during the EMG increase condition. Overall correlations were significant for one of the 2 subjects. The results suggest that EMG activity may not be sufficient to account for pain reports in all chronic headache clients, and variables other than EMG activity may be influencing reports of pain in some patients. |
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