Effect of acute exercise-induced fatigue on maximal rate of heart rate increase during submaximal cycling
Article
Article Title | Effect of acute exercise-induced fatigue on maximal rate of heart rate increase during submaximal cycling |
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ERA Journal ID | 9800 |
Article Category | Article |
Authors | Thomson, Rebecca L. (Author), Rogers, Daniel K. (Author), Howe, Peter R. C. (Author) and Buckley, Jonathan D. (Author) |
Journal Title | Research in Sports Medicine |
Journal Citation | 24 (1), pp. 1-15 |
Number of Pages | 15 |
Year | 2016 |
Place of Publication | United States |
ISSN | 1057-8315 |
1543-8627 | |
1543-8635 | |
Digital Object Identifier (DOI) | https://doi.org/10.1080/15438627.2015.1076414 |
Web Address (URL) | http://www.tandfonline.com/doi/full/10.1080/15438627.2015.1076414 |
Abstract | Different mathematical models were used to evaluate if the maximal rate of heart rate (HR) increase (rHRI) was related to reductions in exercise performance resulting from acute fatigue. Fourteen triathletes completed testing before and after a 2-h run. rHRI was assessed during 5 min of 100-W cycling and a sigmoidal (rHRIsig) and exponential (rHRIexp) model were applied. Exercise performance was assessed using a 5-min cycling time-trial. The run elicited reductions in time-trial performance (1.34 ± 0.19 to 1.25 ± 0.18 kJ · kg-1, P < 0.001), rHRIsig (2.25 ± 1.0 to 1.14 ± 0.7 beats · min-1 · s-1, P < 0.001) and rHRIexp (3.79 ± 2.07 to 1.98 ± 1.05 beats · min-1 · s-1, P = 0.001), and increased pre-exercise HR (73.0 ± 8.4 to 90.5 ± 11.4 beats · min-1, P < 0.001). Pre-post run difference in time-trial performance was related to difference in rHRIsig (r = 0.58, P = 0.04 and r = 0.75, P = 0.003) but not rHRIexp (r = -0.04, P = 0.9 and r = 0.27, P = 0.4) when controlling for differences in pre-exercise and steady-state HR. rHRIsig was reduced following acute exercise-induced fatigue, and correlated with difference in performance. |
Keywords | heart rate kinetics, athletic performance, exercise-induced fatigue, heart rate response, exercise onset |
ANZSRC Field of Research 2020 | 320225. Sports medicine |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of South Australia |
University of Newcastle | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q40y5/effect-of-acute-exercise-induced-fatigue-on-maximal-rate-of-heart-rate-increase-during-submaximal-cycling
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