Key result
Heart rate recovery shows no significant change across training periods in elite male sprint canoeists.
Why the study?
Heart rate is a criterion for exercise intensity and reduced heart rate indicates increased cardiac effectiveness, but long-term heart rate recovery and functional changes in high-class sprint athletes required evaluation.
Observational (n=12)
No
Over a 4-year period, high-class kayakers demonstrated improvements in functional condition and heart rate regeneration.
Answers are grounded in this paper and cite their sources.
Heart rate recovery showed no significant change across periods in elite kayakers; leaves open its value for tracking performance in this population.
One of the criteria for exercise intensity in sport science is heart rate. Reduced heart rate in exercise indicates heart’s ability to work more effectively. 12 high class flat-water kayakers (Latvian national team members) took part in this study. The main aims of the study were to evaluate the improvements of the heart regeneration rate and the functional condition of the athletes over the time period of 4 years - where all participant repeated a maximum oxygen consumption test on rowing ergometer 43 times (2-6 times per athlete). Heart rate recovery drop was obtained in the first 4 minutes after the maximum oxygen consumption test. For reflection on functional condition, speed on kayak ergometer at lactate concentration in blood values of 1 mmol/l and 3 mmol/l was measured (low-intensity load and submaximal intensity load). Speed on kayak ergometer at a blood lactate value 3 mmol/l show an average increase of 0.96 km/h (By Student’s t – test for related samples and Wilcoxon’s criteria). For heart rate regeneration Wilcoxon’s criterion shows an average increase of 0.46%.
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Veispals et al. (2020) conducted an observational in Healthy high-class canoe sprint athletes (n=12). Endurance training over 4 years vs. Lowest functional condition (within-subject) was evaluated on Total heart rate percentage drop (0.46% increase, p=not significant). In high-class male canoe sprint athletes, heart rate recovery after maximum oxygen consumption tests did not change significantly across different training periods, showing an unreliable 0.46% average increase.
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