CranioSacral wave is a pressure wave
This wave can only be displayed with a light sensor (Berry Med finger sensor, IOS camera).
It appears to be a good correlation between a low-frequency blood pressure variation (about 0.1 Hz – 6 cycles/minutes) and the CranioSacral wave – see below ref (1-5).
This pressure variation can be achieved by photoplethysmography (PPG), a non-invasive optical technique at the skin surface that can be used to detect blood volume changes in the microvascular bed of tissue.
This low-frequency pressure wave (which is called Mayer Wave) can then be a good indicator of the cranioSacral wave pattern, rhythm and evolution.
Real time waves of
HRV, HRV_VLF, HRV_LF , PPG_LF
The CranioSacral wave is related to the yellow pressure curve
CranioSacral wave is a blood pressure wave and can only be displayed with a light sensor
like Berry Med finger sensor, IOS camera
(can NOT be displayed with HRV sensors like Polar Chest Strap or KYTO Ear clip sensor)
More on Cranio-Sacral Waves
http://craniosacral-app.com/index.html
(1) D. FERNANDEZ, A. LECINE
L’enregistrement de l’onde de Traube-Hering et de la palpation crĂąnienne simultanĂ©e. Revue OstĂ©o n°9 – November 1990.
http://www.osteopathie-france.net/comprendre-losteopathie/osteo-cranien/616-cranien091
(2) KENNETH E. NELSON, DO; NICETTE SERGUEEF; CELIA M. LIPINSKI, MSII; ARINA R. CHAPMAN, MSII; THOMAS GLONEK, PhD
Cranial rhythmic impulse related to the Traube-Hering-Mayer oscillation: comparing laser-Doppler flowmetry and palpation
JAOA * Vol 101 * No 3 * March 2001 * 163 Â http://www.iahe.com/images/pdf/Traube.pdf
(3) Kenneth E. Nelson, DO, FAAO, FACOFP
The Primary Respiratory Mechanism, The AAO Journal Winter 2002, p24 Â https://www.researchgate.net/publication/266617625_The_primary_respiratory_mechanism
(4) Kenneth E. Nelson, DO; Nicette Sergueef, DO (France); Thomas Glonek, PhD
Recording the Rate of the Cranial Rhythmic Impulse, JAOA * Vol 106 * No 6 * June 2006 * 337-341 Â http://jaoa.org/article.aspx?articleid=2093282
(5) Continuous noninvasive arterial pressure
https://en.wikipedia.org/wiki/Continuous_noninvasive_arterial_pressure