Effects of recumbent isometric yoga on the orthostatic cardiovascular response of patients with myalgic encephalomyelitis/chronic fatigue syndrome. — CFSMEATLAS
Effects of recumbent isometric yoga on the orthostatic cardiovascular response of patients with myalgic encephalomyelitis/chronic fatigue syndrome.
Oka, Takakazu, Lkhagvasuren, Battuvshin · BioPsychoSocial medicine · 2025 · DOI
Quick Summary
This small study looked at whether a gentle yoga practice done while lying down could help ME/CFS patients who experience dizziness or fast heartbeats when standing up (a condition called POTS). Ten women with ME/CFS practiced this special yoga for 12 weeks, and the researchers measured their blood pressure and heart rate before and after standing. The two patients who had POTS at the start showed improvement and had normal responses after the yoga practice.
Why It Matters
POTS affects a subset of ME/CFS patients and contributes significantly to disability and symptom burden. This study suggests a potential non-pharmacological intervention that may help normalize cardiovascular responses to postural changes, which could reduce symptom severity and improve daily functioning for affected patients. Larger controlled trials could establish recumbent isometric yoga as an evidence-based adjunctive treatment option.
Observed Findings
Two ME/CFS patients with POTS at baseline showed normal orthostatic responses after 12 weeks of recumbent isometric yoga
Patients with POTS demonstrated reduced increase in pulse rate when standing after completing the yoga intervention
Eight patients with normal orthostatic responses at baseline maintained normal responses after yoga practice
No adverse cardiovascular responses were reported during the yoga intervention
All 10 patients were female, limiting sex-based generalizability
Inferred Conclusions
Recumbent isometric yoga may normalize orthostatic cardiovascular responses in ME/CFS patients with POTS
Recumbent isometric yoga could serve as an adjunctive non-pharmacological intervention for POTS in ME/CFS populations
Further investigation in larger, controlled studies is warranted to confirm these preliminary findings
Remaining Questions
What is the mechanism by which recumbent isometric yoga improves orthostatic responses and reduces POTS symptoms?
Do the benefits persist after discontinuing yoga practice, or is ongoing practice required to maintain improvement?
What This Study Does Not Prove
This pilot study does not prove that recumbent isometric yoga is an effective POTS treatment, as it lacked a control group and included only two POTS cases. The small sample size and lack of randomization limit generalizability, and the findings may reflect placebo effects or natural variation in POTS symptoms rather than specific yoga benefits. Causation cannot be established from this observational design.
Tags
Symptom:Orthostatic IntoleranceFatigue
Method Flag:PEM Not DefinedNo ControlsSmall SampleExploratory Only