Frontiers Normative values of resting heart rate variability in young male contact sport athletes: Reference values for the assessment and treatment of concussion
Effects of aerobic training intensity on resting, exercise and post-exercise blood pressure, heart rate and heart-rate variability
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Target Heart Rate Calculator LifeSpan Fitness – LifeSpanFitness
Heart Rate Based Training, Polar
Resting Heart Rate for Runners Is My HR Too Low? - RunToTheFinish
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Resting heart rate is a population-level biomarker of cardiorespiratory fitness: The Fenland Study
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Frequency of Heart Rate at Rest in Athletes According to Age and Gender - Vitruve
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