Summary
Many long COVID patients show persistent autonomic dysfunction detectable via HRV, even months after acute infection. Low HRV correlates with symptom severity and may guide activity management.
Methods
HRV analysis in long COVID patients vs recovered controls
Key Findings
- 30-50% of long COVID patients had abnormally low HRV
- HRV correlated with fatigue and exercise intolerance
- Some patients showed gradual HRV improvement over 6-12 months
- HRV useful for pacing and activity management
Limitations
Heterogeneous condition; HRV is one of many markers
What This Means for You
If you have long COVID, HRV can help monitor autonomic recovery and guide activity pacing. Very low HRV suggests need for more rest. Gradual HRV improvement may precede symptom improvement.
Source
Read the original paper in Scientific Reports ↗
Added to HRV Zone: 2025-01-09