title: Influence of magnetostimulation therapy on rheological properties of blood in neurological patients.
abstract: The aim of the study is to test the influence of in vivo magnetostimulation on the rheological properties of blood in neurological patients. Blood circulation in the body depends both on the mechanical properties of the circulatory system and on the physical and physicochemical properties of blood. The main factors influencing the rheological properties of blood are as follows: hematocrit, plasma viscosity, whole-blood viscosity, red cells aggregability, deformability, and the ability of red cells to orient in the flow. The blood samples were collected from neurological patients with pain. Blood samples were collected twice from each patient, that is, before the magnetostimulation and immediately after the therapy. For each blood sample, the hematocrit value was measured using the standard method. Plasma viscosity and whole-blood viscosity were measured by means of a rotary-oscillating rheometer Contraves LS40. Magnetic field was generated by the instrument Viofor JPS® and the magnetostimulation treatments were performed using M1P2 and M1P3 programs. The analysis of the results included estimation of the hematocrit value (Hct), plasma viscosity (ηp), whole-blood viscosity and rheological parameters of Quemada's model: k0, k∞, γ'c. Plasma viscosity values were obtained from the shear rate dependence of shear stress using the linear regression method. The results obtained in the study suggest that the blood rheological properties change in accord with applied magnetostimulation program.
authors.affiliation: a Rheological Laboratory, Department of Neurology , Karol Marcinkowski University of Medical Sciences in Poznań , Poznań , Poland.
authors.forename: Anna
authors.initials: A
authors.lastname: Marcinkowska-Gapińska
authors.affiliation: a Rheological Laboratory, Department of Neurology , Karol Marcinkowski University of Medical Sciences in Poznań , Poznań , Poland.
authors.forename: Piotr
authors.initials: P
authors.lastname: Kowal
mesh_terms: D001775:Blood Circulation; D001809:Blood Viscosity; D018056:Hemorheology; D006801:Humans; D055909:Magnetic Field Therapy; D009422:Nervous System Diseases / Q000503:physiopathology* / Q000628:therapy*
keywords: Hemorheology; blood viscosity; magnetic field; magnetostimulation; rotational measurements