Differential effects of sound interventions tuned to 432 Hz or 443 Hz on cardiovascular parameters in cancer patients: a randomized cross-over trial.

BMC Complement Med Ther · 2025 · PMC11755923 · PMID 39844155

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failed to reach statistical significanceno p-value reported

LVET, as indicator of systolic length, was extended by both interventions (432 Hz median increase + 6 ms, p < 0.001, 443 Hz median increase + 4 ms, p = 0.06), but failed to reach statistical significance for 443 Hz.

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