Int J Sports Med
DOI: 10.1055/a-1380-4219
Clinical Sciences

Electrical Cardiometry and Cardiac Biomarkers in 24-h and 48-h Ultramarathoners

Che-Hung Liu
1  Department of Emergency Medicine, Mackay Memorial Hospital, Taipei, Taiwan
2  Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
,
Li-Hua Li
3  Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
4  School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
,
Ming-Long Chang
5  Department of Emergency & Critical Care Medicine, Taipei Medical University Hospital, Taipei, Taiwan
6  Department of Emergency, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
,
Wei-Fong Kao
5  Department of Emergency & Critical Care Medicine, Taipei Medical University Hospital, Taipei, Taiwan
6  Department of Emergency, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
,
Chorng-Kuang How
7  Department of Emergency Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
8  Department of Emergency Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
9  Ministry of Health and Welfare, Kinmen Hospital, Kinmen, Taiwan
,
Jiun-I Lai
10  Division of Medical Oncology, Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
11  School of Medicine, National Yang-Ming University, Taipei, Taiwan
,
Yen-Kuang Lin
12  Big Data Research Center, Taipei Medical University, Taipei, Taiwan
13  Biostatistics Center, Office of Data Science, Taipei Medical University, Taipei, Taiwan
14  Graduate Institute of Data Science, College of Management, Taipei Medical University, Taipei, Taiwan
,
Yu-Hui Chiu
1  Department of Emergency Medicine, Mackay Memorial Hospital, Taipei, Taiwan
2  Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
6  Department of Emergency, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
,
Wen-Han Chang
1  Department of Emergency Medicine, Mackay Memorial Hospital, Taipei, Taiwan
2  Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
› Author Affiliations
Funding: Finally, this study was supported by Mackay Memorial Hospital, Taiwan (MMH106128/108155).

Abstract

Our study aimed to (i) utilize novel electrical cardiometry and observe acute changes in cardiac biomarkers among 24-h and 48-h ultra-marathoners, and (ii) examine whether alterations in cardiac responses were associated with the average running speed of these participants. Twenty-four 24-h and sixteen 48-h ultra-marathoners were recruited. Electrical cardiometry in the 2 groups showed significant post-race drops in systolic pressure (24-h: p=0.001; 48-h: p=0.016) and rapid increases in heart rate (24-h, p=0.004; 48-h, p=0.001). Cardiac output increased in 48-h runners (p=0.012) and stroke volume decreased in 24-h runners (p=0.009) at post-test. Six of 20 (30%) 24-h and 4 of 16 (25%) 48-h runners had high-sensitivity troponin T values above the reference interval after the races. N-terminal proB-type natriuretic peptide levels showed a 15-fold increase in 24-h runners and a 10-fold increase in 48-h runners at post-race. There was a positive correlation between delta N-terminal proB-type natriuretic peptide and running mileage (rs=0.629, p=0.003) in 24-h ultra-marathoners. In conclusion, stroke volume and cardiac output showed inconsistent changes between the 2 groups. Average running speed has a significant effect on post-exercise elevation in cardiac biomarkers.



Publication History

Received: 05 August 2020

Accepted: 27 January 2021

Publication Date:
09 March 2021 (online)

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