EMG activity in neck and masticatory muscles in relation to extension and flexion of the head.
D000293:Adolescent; D000328:Adult; D004576:Electromyography; D005260:Female; D006257:Head / Q000502:physiology*; D006801:Humans; D008297:Male; D008410:Masticatory Muscles / Q000503:physiopathology*; D008875:Middle Aged; D009068:Movement; D009132:Muscles / Q000503:physiopathology*; D009333:Neck / Q000502:physiology; D009334:Neck Muscles / Q000503:physiopathology*; D011187:Posture