Third-to-first cardiac pulsation harmonic ratio

Male sex increases third-to-first cardiac pulsation harmonic ratio in humans.

“In addition, males had a higher third-to-first harmonic ratio.”

Humansmaless

Ultrafast fMRI Detects Age-Related Changes in Harmonics of Cardiac Pulsations in the Brain at 7 T

Magnetic resonance in medicine·10 May 2026