Why the study?
Adolescent athletes are particularly vulnerable to stress, prompting evaluation of heart rate variability and its associations with training load and sleep duration as a tool for monitoring overtraining.
Does heart rate variability correlate with training load and sleep duration in adolescent swimmers during an 11-week training period?
Population
22 national-level swimmers (age 14.3 ± 1.0 years) of sprint and middle distance events
Comparison
Associations of daily HRV with training load and sleep duration
Design
Prospective observational study
Follow-up
11 weeks
Authors
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HRV has limited day-to-day monitoring value in adolescent swimmers; hypothesis-generating for overtraining risk during high loads.
Does heart rate variability correlate with training load and sleep duration in adolescent swimmers during an 11-week training period?
HRV fluctuations have limited value for day-to-day monitoring of training load in young swimmers, but lower HRV may indicate potential overtraining during sharply increased or extended training loads.
Kamandulis et al. (2020) studied this question.
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