title: [Relation between the amplitude of the electrical activity of cervical, thoracic and abdominal muscle groups and various spirographic indices in healthy subjects over 60 years of age].
mesh_terms: D000009:Abdominal Muscles / Q000502:physiology; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000502:physiology*; D009334:Neck Muscles / Q000502:physiology; D012119:Respiration; D012737:Sex Factors; D013909:Thorax
vernacular_title: Zavisimost mezhdu amplitudata na elektricheskata aktivnost ot vratna, grudna i koremna muskulna grupa i niakoi spirografichni pokazateli u prakticheski zdravi litsa nad 60-godishna vuzrast.