Electromyographic study of the sternocleidomastoid muscle in head movements.
The function of the sternocleidomastoid muscle in head movements of 30 young individuals (19-28 years old, both sexes) was studied electromyographically using a TECA TE-4 electromyograph and Beckman surface electrodes. Action potentials were found in the following head movements: free heterolateral rotation; free homolateral inclination; free and counter-resistance protraction; free and counter-resistance flexion and free extension. These movements were performed with the subjects seated and in supine position.
Costa
D
D
Department of Physical and Occupational Therapy, Centro de Ciências Biológicas e da Saúde da Universidade Federal de São Carlos.
Vitti
M
M
De Oliveira Tosello
D
D
D000200:Action Potentials / Q000502:physiology; D000328:Adult; D002968:Clavicle; D004576:Electromyography; D005260:Female; D006257:Head / Q000502:physiology*; D006801:Humans; D008297:Male; D008416:Mastoid; D009068:Movement; D009334:Neck Muscles / Q000502:physiology*; D011187:Posture; D011930:Reaction Time; D012399:Rotation; D013249:Sternum; D013484:Supination