Monitoring athletic training status using the maximal rate of heart rate increase
Article
Article Title | Monitoring athletic training status using the maximal rate of heart rate increase |
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ERA Journal ID | 9776 |
Article Category | Article |
Authors | Bellenger, Clint R. (Author), Thomson, Rebecca L. (Author), Howe, Peter R. C. (Author), Karavirta, Laura (Author) and Buckley, Jonathan D. (Author) |
Journal Title | Journal of Science and Medicine in Sport |
Journal Citation | 19 (7), pp. 590-595 |
Number of Pages | 6 |
Year | 2016 |
Publisher | Elsevier |
Place of Publication | Australia |
ISSN | 1440-2440 |
1878-1861 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.jsams.2015.07.006 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S1440244015001413 |
Abstract | Objectives: Reductions in maximal rate of heart rate increase (rHRI) correlate with performance reductions when training load is increased. This study evaluated whether rHRI tracked performance changes across a range of training states. Design: Prospective intervention. Methods: rHRI was assessed during five min of cycling at 100 W (rHRIcyc) and running at 8 km/h (rHRIrun) in 13 male triathletes following two weeks of light-training (LT), two weeks of heavy-training (HT) and a two-day recovery period (RP). A five min cycling time-trial assessed performance and peak oxygen consumption (VO2peak). Results: Performance likely decreased following HT (Effect size ± 90% confidence interval = -0.18 ± 0.09), then very likely increased following RP (0.32 ± 0.14). rHRIcyc very likely decreased (-0.48 ± 0.24), and rHRIrun possibly decreased (-0.33 ± 0.48), following HT. Changes in both measures were unclear following RP. Steady-state HR was almost certainly lower (-0.81 ± 0.31) during rHRIcyc than rHRIrun. A large correlation was found between reductions in performance and rHRIrun (r ± 90%; CI = 0.65 ± 0.34) from LT to HT, but was unclear for rHRIcyc. Trivial within-subject correlations were found between rHRI and performance, but the strength of relationship between rHRIrun and performance was largely associated with VO2peak following LT (r = -0.58 ± 0.38). Conclusions: Performance reductions were most sensitively tracked by rHRIrun following HT. This may be due to rHRIrun being assessed at a higher intensity than rHRIcyc, inferred from a higher steady-state HR and supported by a stronger within-subject relationship between rHRIrun and performance in individuals with a lower VO2peak, in whom the same exercise intensity would represent a greater physiological stress. rHRI assessed at relatively high exercise intensities may better track performance changes. |
Keywords | athletic performance; autonomic nervous system; heart rate; overreaching |
ANZSRC Field of Research 2020 | 420799. Sports science and exercise not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of South Australia |
University of Newcastle | |
Polar Electro Oy, Finland | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q40y3/monitoring-athletic-training-status-using-the-maximal-rate-of-heart-rate-increase
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