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Studying the significance of cardiac contractility variability

Shouzhong Xiao, Shaoxi Cai, Guochuan Liu

Open publisher page 17 citations

Abstract

Based on the relationship between the amplitude of the first heart sound (S1) and the cardiac contractility, we propose a concept of cardiac contractility variability (CCV) and a method of analysis. This study was carried out to examine the regularity of the amplitude variability of the first heart sound and to evaluate the practical significance of the CCV. This article considers only three factors: respiration, exercise, and psychological activity. Other factors influencing cardiac contractility are left for further study.

About this research paper

What this paper is about

Based on the relationship between the amplitude of the first heart sound (S1) and the cardiac contractility, we propose a concept of cardiac contractility variability (CCV) and a method of analysis. This study was carried out to examine the regularity of the amplitude variability of the first heart sound and to evaluate the practical significance of the CCV. This article considers only three factors: respiration, exercise, and psychological activity. Other factors influencing cardiac contractility are left for further study.

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OpenAlex reports 17 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Based on the relationship between the amplitude of the first heart sound (S1) and the cardiac contractility, we propose a concept of cardiac contractility variability (CCV) and a method of analysis. This study was carried out to examine the regularity of the amplitude variability of the first heart sound and to evaluate the practical significance of the CCV. This article considers only three factors: respiration, exercise, and psychological activity. Other factors influencing cardiac contractility are left for further study.

Key concepts: Contractility, Cardiology, Internal medicine, Medicine, Amplitude, Physics, Quantum mechanics

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