HRV Science for Athletes

HRV Tracking for CrossFit

Stop guessing when to train hard and when to recover. Use your heart rate variability data to make smarter CrossFit training decisions every day.

Why HRV Matters for CrossFit

CrossFit's varied high-intensity workouts create unpredictable HRV responses. Calio builds your personal baseline from 60 days of data to detect true suppression vs. normal day-to-day variability.

⚕️ Medical disclaimer: The information on this page is for general wellness purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making changes to your training load or recovery protocol based on HRV data.

HRV & CrossFit: what the research says

RMSSD

The gold-standard HRV metric for athletes — measures parasympathetic recovery via successive beat differences.

7-day

Rolling average smooths daily noise. Calio compares your daily reading to your personal 7-day baseline before coaching you.

ACWR

Acute:Chronic Workload Ratio combined with HRV trend gives the clearest picture of injury risk and readiness.

Built for CrossFit Athletes

Personalized Recovery Score

Your score is calculated from your own 60-day HRV baseline — not generic population averages.

Training Load Management

ACWR-based guidance keeps your acute-to-chronic workload in the optimal zone.

Sleep Intelligence

Track sleep debt and get bedtime recommendations that account for tomorrow's training.

Start tracking your CrossFit HRV today

Download FreeFree