Tag Archives: HRV

Parasympathetic activity is reduced during slow-wave sleep, but not resting wakefulness, in patients with CFS

Parasympathetic activity is reduced during slow-wave sleep, but not resting wakefulness, in patients with chronic fatigue syndrome, by Scott J Fatt, Jessica E Beilharz, Michael Joubert, Chloe Wilson, Andrew R Lloyd, Uté Vollmer-Conna, Erin Cvejic in Clin Sleep Med. Vol 16, … Continue reading

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Reduced heart rate variability predicts fatigue severity in individuals with CFS/ME

Reduced heart rate variability predicts fatigue severity in individuals with chronic fatigue syndrome/myalgic encephalomyelitis, by Rosa María Escorihuela, Lluís Capdevila, Juan Ramos Castro, María Cleofé Zaragozà, Sara Maurel, José Alegre & Jesús Castro-Marrero in Journal of Translational Medicine volume 18, Article number: 4 (2020)   … Continue reading

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Autonomic markers, CFS & post-exertion states

Autonomic markers, chronic fatigue syndrome, and post-exertion states, by Fred Friedberg in Journal of Psychosomatic Research Vol 127, Dec 2019, [https://doi.org/10.1016/j.jpsychores.2019.109845]   Article extracts: A large body of evidence suggests that autonomic imbalance, i.e., hyperactive sympathetic nervous system and hypoactive … Continue reading

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Autonomic function in ME & CFS: comparing self-report & objective measures

Autonomic dysfunction in myalgic encephalomyelitis and chronic fatigue syndrome: comparing self-report and objective measures, by Jane Kemp, Madison Sunnquist, Leonard A Jason, Julia L Newton in Clin Auton Res [Preprint 21 May 2019]   Letter extracts: Myalgic encephalomyelitis (ME) and … Continue reading

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Autonomic nervous system function, activity patterns, & sleep after physical or cognitive challenge in people with CFS

Research abstract: Autonomic nervous system function, activity patterns, and sleep after physical or cognitive challenge in people with chronic fatigue syndrome, by E Cvejic, CX Sandler, A Keech, BK Barry, AR Lloyd, U Vollmer-Conna, in J Psychosom Res. 2017 Dec;103:91-94 … Continue reading

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Heart rate variability (HRV) an underused ME/CFS/FM management tool

Health rising treatment resources blog post, by Karmin, 24 Oct 2017: Karmin continues her series on heart rate variability (HRV) testing. Everyone concerned with pacing – a subject everyone with ME/CFS/FM has reason to be concerned with – will find … Continue reading

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Reduced cardiac vagal modulation impacts on cognitive performance in CFS

Abstract of Australian research BACKGROUND: Cognitive difficulties and autonomic dysfunction have been reported separately in patients with chronic fatigue syndrome (CFS). A role for heart rate variability (HRV) in cognitive flexibility has been demonstrated in healthy individuals, but this relationship … Continue reading

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