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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2018
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Online Access: | https://doi.org/10.3389/fphys.2018.00035 https://doaj.org/article/a446789595054e0fb4418ef31ad5a115 |
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ftdoajarticles:oai:doaj.org/article:a446789595054e0fb4418ef31ad5a115 2023-05-15T15:16:16+02:00 Cardiac Autonomic Modulations and Psychological Correlates in the Yukon Arctic Ultra: The Longest and the Coldest Ultramarathon Lea C. Rundfeldt Martina A. Maggioni Robert H. Coker Hanns-Christian Gunga Alain Riveros-Rivera Adriane Schalt Mathias Steinach 2018-02-01T00:00:00Z https://doi.org/10.3389/fphys.2018.00035 https://doaj.org/article/a446789595054e0fb4418ef31ad5a115 EN eng Frontiers Media S.A. http://journal.frontiersin.org/article/10.3389/fphys.2018.00035/full https://doaj.org/toc/1664-042X 1664-042X doi:10.3389/fphys.2018.00035 https://doaj.org/article/a446789595054e0fb4418ef31ad5a115 Frontiers in Physiology, Vol 9 (2018) cold exercise performance extreme environments fatigue heart rate variability mood Physiology QP1-981 article 2018 ftdoajarticles https://doi.org/10.3389/fphys.2018.00035 2022-12-31T13:51:00Z 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 ... Article in Journal/Newspaper Arctic Subarctic Yukon Directory of Open Access Journals: DOAJ Articles Arctic Borg ENVELOPE(16.275,16.275,68.045,68.045) Yukon Frontiers in Physiology 9 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
cold exercise performance extreme environments fatigue heart rate variability mood Physiology QP1-981 |
spellingShingle |
cold exercise performance extreme environments fatigue heart rate variability mood Physiology QP1-981 Lea C. Rundfeldt Martina A. Maggioni Robert H. Coker Hanns-Christian Gunga Alain Riveros-Rivera Adriane Schalt Mathias Steinach Cardiac Autonomic Modulations and Psychological Correlates in the Yukon Arctic Ultra: The Longest and the Coldest Ultramarathon |
topic_facet |
cold exercise performance extreme environments fatigue heart rate variability mood Physiology QP1-981 |
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 |
Article in Journal/Newspaper |
author |
Lea C. Rundfeldt Martina A. Maggioni Robert H. Coker Hanns-Christian Gunga Alain Riveros-Rivera Adriane Schalt Mathias Steinach |
author_facet |
Lea C. Rundfeldt Martina A. Maggioni Robert H. Coker Hanns-Christian Gunga Alain Riveros-Rivera Adriane Schalt Mathias Steinach |
author_sort |
Lea C. Rundfeldt |
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 |
https://doi.org/10.3389/fphys.2018.00035 https://doaj.org/article/a446789595054e0fb4418ef31ad5a115 |
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_source |
Frontiers in Physiology, Vol 9 (2018) |
op_relation |
http://journal.frontiersin.org/article/10.3389/fphys.2018.00035/full https://doaj.org/toc/1664-042X 1664-042X doi:10.3389/fphys.2018.00035 https://doaj.org/article/a446789595054e0fb4418ef31ad5a115 |
op_doi |
https://doi.org/10.3389/fphys.2018.00035 |
container_title |
Frontiers in Physiology |
container_volume |
9 |
_version_ |
1766346564353130496 |