Maximal rate of increase in heart rate during the rest-exercise transition tracks reductions in exercise performance when training load is increased
Article
Article Title | Maximal rate of increase in heart rate during the rest-exercise transition tracks reductions in exercise performance when training load is increased |
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ERA Journal ID | 9776 |
Article Category | Article |
Authors | Nelson, Maximillian J. (Author), Thomson, Rebecca L. (Author), Rogers, Daniel K. (Author), Howe, Peter R. C. (Author) and Buckley, Jonathan D. (Author) |
Journal Title | Journal of Science and Medicine in Sport |
Journal Citation | 17 (1), pp. 129-133 |
Number of Pages | 5 |
Year | 2014 |
Publisher | Elsevier |
Place of Publication | Australia |
ISSN | 1440-2440 |
1878-1861 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.jsams.2013.02.016 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S1440244013000492 |
Abstract | Objectives: Heart rate kinetics are faster in well-trained athletes at exercise onset, indicating sensitivity to training status, but whether they track performance changes due to changes in training load is unknown. Design: Randomised, counterbalanced, cross-over. Methods: 17 cyclists completed two weeks of light and two weeks of heavy training. The day after each training period heart rate was recorded during 5. min cycling at 100. W to determine the maximal rate of heart rate increase. Participants then performed a 5. min cycle time-trial after which heart rate recovery was determined. Results: Work during 5. min cycle time-trial decreased 3.5% (P<. 0.04) in participants (n= 8) who increased training load (completed light training then heavy training) and, although maximal rate of heart rate increase did not change (P= 0.27), within-individual changes in work were correlated with changes in maximal rate of heart rate increase (r= 0.87, P= 0.005). Work during 5. min cycle time-trial increased 6.5% (P< 0.001) in 9 participants who decreased training load (completed heavy training then light training) and maximal rate of heart rate increase increased 28% (P= 0.002) but the changes in maximal work were not related to changes in rate of heart rate increase (r= 0.32, P= 0.40). Heart rate recovery tended to track changes in 5. min cycle time-trial work following increases and decreases in training load (r= 0.65-0.75, P= 0.03-0.08). Conclusions: Maximal rate of heart rate increases during cycling at 100. W tracks reductions in exercise performance when training load is increased, but not performance improvements when training loads are reduced. Maximal rate of heart rate increase may be a useful adjunct to heart rate recovery for tracking changes in exercise performance. |
Keywords | Cardiac autonomic function; Exercise performance; Fatigue; Heart rate recovery; Training load; Physiology; |
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 |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q40z4/maximal-rate-of-increase-in-heart-rate-during-the-rest-exercise-transition-tracks-reductions-in-exercise-performance-when-training-load-is-increased
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