Cardiorespiratory coupling strength in athletes and non-athletes.

Autor: Abreu RM; LUNEX University, International University of Health, Exercise & Sports S.A. 50, Department of Physiotherapy, Differdange, Luxembourg; LUNEX ASBL Luxembourg Health & Sport Sciences Research Institute, Differdange, Luxembourg; Federal University of São Carlos, Department of Physical Therapy, São Carlos, São Paulo, Brazil. Electronic address: raphaelmartins.abreu@gmail.com., Porta A; University of Milan, Department of Biomedical Sciences for Health, Milan, Italy; IRCCS Policlinico San Donato, Department of Cardiothoracic, Vascular Anesthesia and Intensive Care, San Donato Milanese, Milan, Italy., Rehder-Santos P; Federal University of São Carlos, Department of Physical Therapy, São Carlos, São Paulo, Brazil., Cairo B; University of Milan, Department of Biomedical Sciences for Health, Milan, Italy., Sakaguchi CA; Appalachian State University, Department of Health, Leisure, and Exercise Science, NC, USA., da Silva CD; Federal University of São Carlos, Department of Physical Therapy, São Carlos, São Paulo, Brazil., Signini ÉF; Federal University of São Carlos, Department of Physical Therapy, São Carlos, São Paulo, Brazil., Milan-Mattos JC; Federal University of São Carlos, Department of Physical Therapy, São Carlos, São Paulo, Brazil., Catai AM; Federal University of São Carlos, Department of Physical Therapy, São Carlos, São Paulo, Brazil.
Jazyk: angličtina
Zdroj: Respiratory physiology & neurobiology [Respir Physiol Neurobiol] 2022 Nov; Vol. 305, pp. 103943. Date of Electronic Publication: 2022 Jul 11.
DOI: 10.1016/j.resp.2022.103943
Abstrakt: Purpose: Despite the relevant presence of nonlinear components on heart period (HP) likely due to cardiorespiratory coupling (CRC), the HP is frequently analyzed in absence of concomitant recordings of respiratory movements (RESP). This study aims to assess the cardiovascular dynamics and CRC during postural challenge in athletes and non-athletes via joint symbolic analysis (JSA).
Methods: A cross-sectional study was conducted in 50 men, aged between 20 and 40 yrs, divided into athletes (n = 25) and non-athletes (n = 25) groups. The electrocardiogram, blood pressure and RESP signals were recorded during 15 min in both supine position (REST) and after active postural maneuver (STAND). From the beat-to-beat series of HP, systolic arterial pressure (SAP) and RESP, we computed the time and frequency domain indexes and baroreflex sensitivity. The JSA was based on the definition of symbolic HP and RESP patterns and on the evaluation of the rate of their simultaneous occurrence in both HP and RESP series.
Results: The JSA analysis was able to identify higher CRC strength at REST in athletes. Moreover, the response of CRC to STAND depended on the time scales of the analysis and was much more evident in athletes than in non-athletes, thus indicating a more reactive autonomic control in athletes.
Conclusion: Assessing CRC in athletes via JSA provides additional information compared to standard linear time and frequency domain tools likely due to the more relevant presence of nonlinearities in HP-RESP variability relationship.
(Copyright © 2022 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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