Fig. 2From: Dysautonomia and small fiber neuropathy in post-COVID condition and Chronic Fatigue SyndromeDeep breathing, Valsalva maneuver and Tilt test parameters. For Valsalva maneuver systolic blood pressure data, the differences between the baseline and each phase were taken. *p ≤ 0.05; ***p ≤ 0.001. BP: blood pressure; HC: Healthy Controls; ME/CFS: Myalgic Encephalomyelitis/Chronic Fatigue Syndrome; PRT: pressure recovery timeBack to article page