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The Effect of CV-4 Upon Cutaneous Bloodflow Velocity

Journal: The Journal of the American Osteopathic Association Date: 2006/08, 106(8):Pages: 473. doi: Subito , type of study: clinical trial

Full text    (https://www.degruyter.com/document/doi/10.7556/jaoa.2006.106.8.471/html)

Keywords:

blood flow [28]
clinical trial [662]
cranio-sacral osteopathy [220]
CV4 technique [14]

Abstract:

The CV-4 procedure purports to affect the cranial rhythmic impulse, a phenomenon that has been shown to be concomitant with the low-frequency Traube-Hering (TH) oscillation in blood flow velocity. This study examines the affect of the CV-4 upon blood flow velocity. Fourier-transform spectra were extracted from laser-Doppler flowmetry of each of three component parts of the experimental CV-4 procedure (Control, Treatment, Response). The component spectra are compared statistically in each of three low-frequency and four high-frequency spectral parameters derived therefrom. Also included in the analysis are the mean frequency of the dominant flowmetry (TH) wave, and the mean duration of the CV-4 procedure. Human subjects (informed consent obtained) were paired with 28 individual physicians for the performance of the CV-4 procedure. Flowmetry records (Transonic® Laser-Doppler; BLF21, Ithaca, NY) were obtained tracking the course of the procedure, 20 of which were useable for inter-group comparisons. Fourier transform difference spectra were compared statistically using the One-Way ANOVA (SPSS Inc, Chicago, IL). The mean frequency of the TH waveform visible in the blood flowmetry record was 7.10±2.07 cpm. The mean CV-4 procedure length was 4.43±2.22 minutes. The CV-4 procedure was shown specifically to affect the low-frequency oscillations in blood flow velocity. Following its application, the amplitude of the TH wave increased [0.10 Hz frequency relative area units: control minus treatment (0.08010 units) compared with control minus response (–0.03358 units), P=0.011]. It is concluded that cranial manipulation affects the autonomic nervous system because the TH waves have been demonstrated to be mediated through autonomic activity (Akselrod et al, 1985). Since palpation alone does not greatly effect blood flow velocity oscillations, there is a quantifiable difference between palpation alone and cranial treatment utilizing the CV-4 procedure. It can be said that the practitioners of cranial manipulation who participated in this study affected their subjects in a quantifiable manner with the CV-4 procedure.


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