Differential patterns of muscle modification in women with episodic and chronic tension-type headache revealed using surface electromyographic analysis.
J Electromyogr Kinesiol
; 23(1): 110-7, 2013 Feb.
Article
en En
| MEDLINE
| ID: mdl-22947196
ABSTRACT
Tension-type headache (TTH) is a prototypical disorder in which muscular factors play a key role in the pathogenesis. This study was designed to understand muscular dysfunction in patients with episodic (ETTH) and chronic TTH (CTTH) using surface electromyography analysis (SEMG). Women with frequent ETTH (n = 14), CTTH (n = 14) and age-matched controls (n = 13) were recruited. SEMG data were recorded from the masseter, sternocleidomastoid, and upper trapezius muscles during maximum voluntary contraction and sustained voluntary isometric clenching, the neck flexion endurance test and shoulder elevation for 30s. The root mean square (RMS) and median frequency (MDF) of the SEMG signal were measured throughout the test. The fatigue index, which is the MDF slope during sustained muscle contraction, decreased significantly faster in the ETTH and CTTH groups compared with that in the control (p < 0.05). The mean absolute RMS and relative percentage values at the initial and final period during sustained isometric contraction decreased significantly in the CTTH group (p < 0.05). Furthermore, headache clinical parameters (frequency and duration) were negatively correlated with the amplitude values (p < 0.05). A different muscle firing pattern or some muscle modifications in patients with CTTH may reflect reorganization of the motor-control strategy.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Resistencia Física
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Adaptación Fisiológica
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Cefalea de Tipo Tensional
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Músculo Esquelético
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Electromiografía
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Contracción Isométrica
Límite:
Adult
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Aged
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Female
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Humans
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Middle aged
Idioma:
En
Revista:
J Electromyogr Kinesiol
Asunto de la revista:
FISIOLOGIA
Año:
2013
Tipo del documento:
Article