The Efficacy of Ergometry Determined Heart Rates for Flatwater Kayak Training

Abstract

The aim of this study was to investigate the use of incremental ergometry determined heart rate training intensities for the control of kayak ergometer and open water kayak training. Eight well-trained male kayakers completed a maximal incremental exercise test on an air-braked kayak ergometer for the determination of LT₁ (the power output at which blood lactate concentration increased by ≥ 1 mmol × L^-1), the associated heart rate (HR-LT₁), V˙O₂peak, maximal heart rate and maximal aerobic power. Subjects then performed 20 min trials of kayak ergometry (E), open water kayaking in a single kayak (K1) and open water kayaking in a four-seat kayak (K4) at HR-LT₁. During the three trials, heart rate was continuously measured, and blood lactate concentration, rating of perceived exertion (RPE) and stroke rate were determined every 5 min. In all trials, exercise at HR-LT₁ resulted in stable blood lactate concentrations and a stable RPE. Comparison of the three trials demonstrated that the only difference was for RPE, which was lower in (K4) than in (E), (p < 0.05). The results demonstrate that the prescription of HR-LT₁ elicits similar blood lactate concentrations during kayak ergometer and open water kayak training in both single and team boats.

Key words

Lactate threshold · kayak ergometry · training prescription.

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