Why the study?
Heart rate indices are used to monitor athlete fatigue, but whether they are sensitive to changes in readiness following sleep restriction and extension was unclear.
Do sleep extension and restriction alter heart rate indices and endurance performance in athletes?
Population
Nine athletes
Comparison
Sleep restriction vs normal sleep vs sleep extension
Design
Crossover study
Follow-up
4 consecutive days
Authors
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RPE:HR ratios may flag sleep effects on athlete readiness; leaves open validation for training guidance.
Do sleep extension and restriction alter heart rate indices and endurance performance in athletes?
Exercise intensity ratios incorporating mean heart rate are sensitive to the effects of sleep duration on athlete readiness and endurance performance.
Roberts et al. (2021) studied this question.
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