Training history, cardiac autonomic recovery from submaximal exercise and associated performance in recreational runners
ID Špenko, Matic (Author), ID Potočnik, Ivana (Author), ID Edwards, Ian (Author), ID Potočnik, Nejka (Author)

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This study investigated the effect of prolonged exertion on cardiac parasympathetic (cPS) reorganization and associated aerobic performance in response to repeated short-lasting submaximal exercise bouts (SSE) performed for 7 days following prolonged exertion. In 19 recreational runners, heart rate (HR) and HR variability (HRV) indices (lnRMSSD, lnHF, and lnLF/HF) were monitored pre- and post-submaximal graded cycling performed on consecutive days following a half-marathon (HM) and compared with the baseline, pre-HM values. Additionally, HR recovery (HRR), aerobic performance, and rate of perceived exertion (RPE) were determined. HR, HRV indices, and HRR were tested for correlation with exercise performance. A significant time effect was found in HR, HRR, and HRV indices as well as in aerobic performance and RPE during the study period. Most of the measured parameters differed from their baseline values only on the same day following HM. However, HRR and HR measured in recovery after SSE were additionally affected one day following the half-marathon yet in opposite directions to those recorded on the same day as the HM. Thus, postSSE HR and HRR exhibited a bivariate time response (postSSE HR: 102 ± 14 bpm; p < 0.001; 82 ± 11 bpm; p = 0.007 vs. 88 ± 11 bpm; HRR in 30 s after SSE cessation: 14.9 ± 4.9 bpm; p < 0.001; 30.1 ± 13.3 bpm; p = 0.006 vs. 24.4 ± 10.8 bpm), potentially indicating a cPS dysfunction phase on the same day and cPS rebound phase one day following HM reflected also in consecutive changes in aerobic power. Correlations were found between the changes in measured cardiac indices with respect to baseline and the changes in aerobic performance indices throughout the study period. The effect of exercise history on cPS reorganization is more pronounced in response to SSE than at rest. Accordingly, we conclude that SSE performed repeatedly on a daily basis following prolonged exertion offers a noninvasive tool to evaluate the impact of training history on cPS recovery and associated aerobic power output in recreational athletes.

Keywords:endurance exercise, heart rate recovery, heart rate variability, training recovery
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:MF - Faculty of Medicine
Publication status:Published
Publication version:Version of Record
Number of pages:21 str.
Numbering:Vol. 19, iss. 16, art. 9797
PID:20.500.12556/RUL-145245 This link opens in a new window
ISSN on article:1660-4601
DOI:10.3390/ijerph19169797 This link opens in a new window
COBISS.SI-ID:120960259 This link opens in a new window
Publication date in RUL:13.04.2023
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Record is a part of a journal

Title:International journal of environmental research and public health
Shortened title:Int. j. environ. res. public health
COBISS.SI-ID:1818965 This link opens in a new window


License:CC BY 4.0, Creative Commons Attribution 4.0 International
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Keywords:vzdržljivostna vadba, okrevanje srčnega utripa, variabilnost srčnega utripa


Funder:ARRS - Slovenian Research Agency
Project number:P3-0019
Name:Aplikativna in bazična fiziologija in patofiziologija v medicini

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