Summary
After concussion, HRV (particularly pNN50) decreases acutely and typically recovers within 3 weeks. Monitoring HRV may help guide safe return-to-play decisions.
Methods
Longitudinal HRV monitoring in concussed athletes
Key Findings
- pNN50 decreased at 3 days post-concussion
- HRV recovered to baseline by ~3 weeks
- Persistent low HRV may indicate incomplete recovery
- Autonomic dysfunction common after mild TBI
- HRV may complement symptom-based return protocols
Limitations
Individual recovery timelines vary significantly
What This Means for You
After a concussion, HRV tracking can provide objective recovery data. Don't return to full activity until HRV stabilizes at your baseline, even if symptoms have resolved.
Source
Read the original paper in Frontiers in Neuroscience ↗
Added to HRV Zone: 2025-01-10