Endurance Unlimited

Ep. 13: Heart Rate Variability with Simon Wegerif

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Jan 28, 2019
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INSIGHT

What HRV Actually Measures

  • Heart rate variability (HRV) measures the precise timing between individual heartbeats rather than exercise heart rate.
  • HRV reflects how the heart speeds up with inhalation and slows with exhalation, and greater variation indicates better recovery.
INSIGHT

HRV Targets The Recovery System

  • HRV directly measures parasympathetic nervous system activity tied to rest and recovery.
  • Resting heart rate mixes parasympathetic, sympathetic and hormonal effects, making HRV a more sensitive recovery metric.
ADVICE

Use Good Sensors And Morning Tests

  • Use a high-quality chest strap or validated pulse sensor to capture precise interbeat intervals.
  • Measure HRV consistently every morning (sitting or standing) to build a useful baseline and track accumulating fatigue.
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