HF power

Biomarker

3 papers study it9 more mention it2 findings

  • Human trial3

Interventions

2

Nitrate

upin humans1

1 study
  1. Nitrate increases HF power in humans (p = 0.009).

    “HF power was significantly higher, but only after seven-day supplementation (p = 0.009).”

    Human trialpost-exercise recovery in hypertensive postmenopausal womenbeetroot juice400 mg/dayseven-dayfemalesn = 14

    Dietary Inorganic Nitrate Accelerates Cardiac Parasympathetic Recovery After Exercise in Older Women with Hypertension: A Secondary Analysis of a Randomised Crossover Study

    Metabolites

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Deep breathing

no changein humans1

1 study
  1. Deep breathing has no effect on HF power in humans.

    “HF power showed no significant effect in group and time.”

    Human trial

    Immediate effects of structured and natural deep breathing on heart rate variability and blood pressure in community-dwelling older adults

    Experimental gerontology

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Latest

Nov 2025: 0Dec 2025: 2Jan 2026: 0Feb 2026: 0Mar 2026: 0Apr 2026: 0May 2026: 0Jun 2026: 0Jul 2026: 0Aug 2026: 0Sep 2026: 0Oct 2026: 13 papers in 12 months