Prediction of Simulated 1,000 m Kayak Ergometer Performance in Young Athletes
Coelho, André B., Nakamura, Fabio, Morgado, Micaela C., Alves, Francisco, Di Baldassarre, Angela, Flatt, Andrew, and Rama, Luis (2021) Prediction of Simulated 1,000 m Kayak Ergometer Performance in Young Athletes. Frontiers in Public Health, 8. 526477.
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Abstract
This study aimed to develop a predictive explanatory model for the 1,000-m time-trial (TT) performance in young national-level kayakers, from biomechanical and physiological parameters assessed in a maximal graded exercise test (GXT). Twelve young male flat-water kayakers (age 16.1 ± 1.1 years) participated in the study. The design consisted of 2 exercise protocols, separated by 48 h, on a kayak ergometer. The first protocol consisted of a GXT starting at 8 km.h−1 with increments in speed of 1 km.h−1 at each 2-min interval until exhaustion. The second protocol comprised the 1,000-m TT. Results: In the GXT, they reached an absolute (Formula presented.) O2max of 3.5 ± 0.7 (L.min−1), a maximum aerobic power (MAP) of 138.5 ± 24.5 watts (W) and a maximum aerobic speed (MAS) of 12.8 ± 0.5 km/h. The TT had a mean duration of 292.3 ± 15 s, a power output of 132.6 ± 22.0 W and a (Formula presented.) O2max of 3.5 ± 0.6 (L.min−1). The regression model [TT (s) = 413.378–0.433 × (MAP)−0.554 × (stroke rate at MAP)] presented an R2 = 84.5%. Conclusion: It was found that (Formula presented.) O2max, stroke distance and stroke rate during the GXT were not different from the corresponding variables ((Formula presented.) O2peak, stroke distance and stroke rate) observed during the TT. The MAP and the corresponding stroke rate were strong predicting factors of 1,000 m TT performance. In conclusion, the TT can be useful for quantifying biomechanical parameters (stroke distance and stroke rate) and to monitor training induced changes in the cardiorespiratory fitness ((Formula presented.) O2max).
| Item ID: | 66940 |
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| Item Type: | Article (Research - C1) |
| ISSN: | 2296-2565 |
| Keywords: | 1000 m, canoe sprint, canoeing and kayaking, maturation, time-trial, ventilatory threshhold, VO 2max, young kayakers |
| Copyright Information: | © 2021 Coelho, Nakamura, Morgado, Alves, Di Baldassarre, Flatt and Rama. 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(s) 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. |
| Date Deposited: | 26 Apr 2022 23:26 |
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