Cardiac Autonomic Modulations and Psychological Correlates in the Yukon Arctic Ultra: The Longest and the Coldest Ultramarathon
Studies on human physical performance in extreme environments have effectively approached the investigation of adaptation mechanisms and their physiological limits. As scientific interest in the interplay between physiological and psychological aspects of performance is growing, we aimed to investig...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5816048/ http://www.ncbi.nlm.nih.gov/pubmed/29483874 https://doi.org/10.3389/fphys.2018.00035 |
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ftpubmed:oai:pubmedcentral.nih.gov:5816048 2023-05-15T15:14:53+02:00 Cardiac Autonomic Modulations and Psychological Correlates in the Yukon Arctic Ultra: The Longest and the Coldest Ultramarathon Rundfeldt, Lea C. Maggioni, Martina A. Coker, Robert H. Gunga, Hanns-Christian Riveros-Rivera, Alain Schalt, Adriane Steinach, Mathias 2018-02-12 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5816048/ http://www.ncbi.nlm.nih.gov/pubmed/29483874 https://doi.org/10.3389/fphys.2018.00035 en eng Frontiers Media S.A. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5816048/ http://www.ncbi.nlm.nih.gov/pubmed/29483874 http://dx.doi.org/10.3389/fphys.2018.00035 Copyright © 2018 Rundfeldt, Maggioni, Coker, Gunga, Riveros-Rivera, Schalt and Steinach. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. CC-BY Physiology Text 2018 ftpubmed https://doi.org/10.3389/fphys.2018.00035 2018-03-04T01:32:22Z Studies on human physical performance in extreme environments have effectively approached the investigation of adaptation mechanisms and their physiological limits. As scientific interest in the interplay between physiological and psychological aspects of performance is growing, we aimed to investigate cardiac autonomic control, by means of heart rate variability, and psychological correlates, in competitors of a subarctic ultramarathon, taking place over a 690 km course (temperatures between +5 and −47°C). At baseline (PRE), after 277 km (D1), 383 km (D2), and post-race (POST, 690 km), heart rate (HR) recordings (supine, 15 min), psychometric measurements (Profile of Mood States/POMS, Borg fatigue, and Karolinska Sleepiness Scale scores both upon arrival and departure) were obtained in 16 competitors (12 men, 4 women, 38.6 ± 9.5 years). As not all participants reached the finish line, comparison of finishers (FIN, n = 10) and non-finishers (NON, n = 6), allowed differential assessment of performance. Resting HR increased overall significantly at D1 (FIN +15.9; NON +14.0 bpm), due to a significant decrease in parasympathetic drive. This decrease was in FIN only partially recovered toward POST. In FIN only, baseline HR was negatively correlated with mean velocity [r −0.63 (P.04)] and parasympathetic drive [pNN50+: r −0.67 (P.03)], a lower HR and a higher vagal tone predicting a better performance. Moreover, in FIN, a persistent increase of the long-term self-similarity coefficient, assessed by detrended fluctuation analysis (DFAα2), was retrieved, possibly due to higher alertness. As for psychometrics, at D1, POMS Vigor decreased (FIN: −7.0; NON: −3.8), while Fatigue augmented (FIN: +6.9; NON: +5.0). Sleepiness increased only in NON, while Borg scales did not exhibit changes. Baseline comparison of mood states with normative data for athletes displayed significantly higher positive mood in our athletes. Results show that: the race conditions induced early decreases in parasympathetic drive; the extent of vagal ... Text Arctic Subarctic Yukon PubMed Central (PMC) Arctic Borg ENVELOPE(16.275,16.275,68.045,68.045) Yukon Frontiers in Physiology 9 |
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English |
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Physiology |
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Physiology Rundfeldt, Lea C. Maggioni, Martina A. Coker, Robert H. Gunga, Hanns-Christian Riveros-Rivera, Alain Schalt, Adriane Steinach, Mathias Cardiac Autonomic Modulations and Psychological Correlates in the Yukon Arctic Ultra: The Longest and the Coldest Ultramarathon |
topic_facet |
Physiology |
description |
Studies on human physical performance in extreme environments have effectively approached the investigation of adaptation mechanisms and their physiological limits. As scientific interest in the interplay between physiological and psychological aspects of performance is growing, we aimed to investigate cardiac autonomic control, by means of heart rate variability, and psychological correlates, in competitors of a subarctic ultramarathon, taking place over a 690 km course (temperatures between +5 and −47°C). At baseline (PRE), after 277 km (D1), 383 km (D2), and post-race (POST, 690 km), heart rate (HR) recordings (supine, 15 min), psychometric measurements (Profile of Mood States/POMS, Borg fatigue, and Karolinska Sleepiness Scale scores both upon arrival and departure) were obtained in 16 competitors (12 men, 4 women, 38.6 ± 9.5 years). As not all participants reached the finish line, comparison of finishers (FIN, n = 10) and non-finishers (NON, n = 6), allowed differential assessment of performance. Resting HR increased overall significantly at D1 (FIN +15.9; NON +14.0 bpm), due to a significant decrease in parasympathetic drive. This decrease was in FIN only partially recovered toward POST. In FIN only, baseline HR was negatively correlated with mean velocity [r −0.63 (P.04)] and parasympathetic drive [pNN50+: r −0.67 (P.03)], a lower HR and a higher vagal tone predicting a better performance. Moreover, in FIN, a persistent increase of the long-term self-similarity coefficient, assessed by detrended fluctuation analysis (DFAα2), was retrieved, possibly due to higher alertness. As for psychometrics, at D1, POMS Vigor decreased (FIN: −7.0; NON: −3.8), while Fatigue augmented (FIN: +6.9; NON: +5.0). Sleepiness increased only in NON, while Borg scales did not exhibit changes. Baseline comparison of mood states with normative data for athletes displayed significantly higher positive mood in our athletes. Results show that: the race conditions induced early decreases in parasympathetic drive; the extent of vagal ... |
format |
Text |
author |
Rundfeldt, Lea C. Maggioni, Martina A. Coker, Robert H. Gunga, Hanns-Christian Riveros-Rivera, Alain Schalt, Adriane Steinach, Mathias |
author_facet |
Rundfeldt, Lea C. Maggioni, Martina A. Coker, Robert H. Gunga, Hanns-Christian Riveros-Rivera, Alain Schalt, Adriane Steinach, Mathias |
author_sort |
Rundfeldt, Lea C. |
title |
Cardiac Autonomic Modulations and Psychological Correlates in the Yukon Arctic Ultra: The Longest and the Coldest Ultramarathon |
title_short |
Cardiac Autonomic Modulations and Psychological Correlates in the Yukon Arctic Ultra: The Longest and the Coldest Ultramarathon |
title_full |
Cardiac Autonomic Modulations and Psychological Correlates in the Yukon Arctic Ultra: The Longest and the Coldest Ultramarathon |
title_fullStr |
Cardiac Autonomic Modulations and Psychological Correlates in the Yukon Arctic Ultra: The Longest and the Coldest Ultramarathon |
title_full_unstemmed |
Cardiac Autonomic Modulations and Psychological Correlates in the Yukon Arctic Ultra: The Longest and the Coldest Ultramarathon |
title_sort |
cardiac autonomic modulations and psychological correlates in the yukon arctic ultra: the longest and the coldest ultramarathon |
publisher |
Frontiers Media S.A. |
publishDate |
2018 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5816048/ http://www.ncbi.nlm.nih.gov/pubmed/29483874 https://doi.org/10.3389/fphys.2018.00035 |
long_lat |
ENVELOPE(16.275,16.275,68.045,68.045) |
geographic |
Arctic Borg Yukon |
geographic_facet |
Arctic Borg Yukon |
genre |
Arctic Subarctic Yukon |
genre_facet |
Arctic Subarctic Yukon |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5816048/ http://www.ncbi.nlm.nih.gov/pubmed/29483874 http://dx.doi.org/10.3389/fphys.2018.00035 |
op_rights |
Copyright © 2018 Rundfeldt, Maggioni, Coker, Gunga, Riveros-Rivera, Schalt and Steinach. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fphys.2018.00035 |
container_title |
Frontiers in Physiology |
container_volume |
9 |
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1766345279764692992 |