title: Quantitative ballistocardiography (Q-BCG) for measurement of cardiovascular dynamics.
abstract: In the seventies of the past century ballistocardiography had been thought to be obsolete in cardiology for impossibility of objective calibration. In the present work the quantitative ballistocardiography (Q-BCG) for measurement of systolic force (F) and minute cardiac force (MF) in sitting subject was described. The new principle of piezoelectric transducer enabled to register the force caused by the heart and blood movement, which was not measured before. The calibration proved that the action of the force on the transducer was expressed quantitatively without the amplitude-, time-, and phase deformation. The close relationship of skeletal muscle force and F was proved. The F and MF changed under different physiological conditions (age, partial pressure of oxygen, body weight, skeletal muscle force). It was shown that the systolic force (F) and minute cardiac force (MF) are the physiological parameters neurohumorally regulated similarly as the heart rate or systolic volume.
authors.affiliation: Laboratory of Cardiology, Prague, Czech Republic. z.m.trefny@grbox.cz
authors.forename: Z M
authors.initials: ZM
authors.lastname: Trefný
authors.forename: J
authors.initials: J
authors.lastname: Svačinka
authors.forename: O
authors.initials: O
authors.lastname: Kittnar
authors.forename: J
authors.initials: J
authors.lastname: Slavíček
authors.forename: M
authors.initials: M
authors.lastname: Trefný
authors.forename: E
authors.initials: E
authors.lastname: Filatova
authors.forename: J A
authors.initials: JA
authors.lastname: Tichý
authors.forename: P
authors.initials: P
authors.lastname: Smrčka
authors.forename: M
authors.initials: M
authors.lastname: Stork
authors.forename: M
authors.initials: M
authors.lastname: Loučka
mesh_terms: D000293:Adolescent; D000328:Adult; D001450:Ballistocardiography / Q000379:methods*; D002648:Child; D005080:Exercise Test / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D018482:Muscle, Skeletal / Q000502:physiology; D009200:Myocardial Contraction / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D055815:Young Adult