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Biomedical subjects

I Magyarosy

Publications and source records attributed to I Magyarosy.

5 recordsLinked to original sources
PubMed1990

[Muscle training by electrostimulation].

Repeated electrical stimulation of skeletal muscles with intact innervation can lead to increased muscular performance. This form of treatment is employed, for example, in atrophy prophylaxis, re-establishment of lost muscular power, and selective strengthening of isolated muscles or muscle groups, and has also been recommended for sport-related performance training. For the most part, it represents an adjuvant measure to active exercise. The selected current forms and stimulation parameters must be oriented to the laws of stimulation physiology. Suitable selection and positioning of electrodes, together with dosage are decisive for the success of treatment. Recent aspects of electrostimulation are so-called fiberspecific electrotraining and the question as to whether the use of certain stimulation frequencies can preferentially be used for phasic or tonic muscle fibers. Electrostimulation of denervated muscles is controversial.

Humans↗
PubMed1987

Dose-effect relationship between smoking and blood rheology.

Five groups of male blood donors were investigated. The first group had never smoked, the second were ex-smokers, the third smoked between 10 and 20 cigarettes per day, the fourth between 21 and 40, and the fifth more than that. Haematocrit, white cell count, plasma and native blood viscosity, blood cell filterability and aggregation, plasma colloid oncotic pressure as well as fibrinogen were measured. Results show that smoking is associated with a progressive significant deterioration of the above haemorheologic variables. These changes are interpreted as an absolute and a relative polycythaemia possibly in conjunction with a chronic inflammatory process. It is concluded that smoking induces a dose-related increase in viscosity of blood among young men which is reversible by abstention.

Adult↗
PubMed1986

Sauna effects on hemorheology and other variables.

Acute sauna induces decreased blood fluidity as quantified by measurements of blood and plasma viscosity, hematocrit, red cell filterability, and aggregation. The effect is far less prominent when sauna treatment is continued regularly for eight weeks. In this case there are only minor changes in native blood viscosity and hematocrit together with slight variations in hematologic measurements, calcium, and serum protein pattern. Thus, from the hemorheology point of view, sauna leads to adverse effects predominantly acutely, while long-term effects seem negligible. Such aspects are worth considering in patients with high cardiovascular risks, and marked hypoperfusion.

Adult↗
PubMed1984

A new simple method for measuring red cell aggregation.

A viscometric technique is outlined for the measurement of red cell aggregation (RCA). Samples are submitted to a constant shear rate of 2,4 s-1. The resulting time dependent torque signal reaches a peak soon after starting the rotation and falls within seconds to a constant baseline, thereby describing an area "F" with the baseline. The shear history of the sample being strictly controlled, "F" is reproducible and shows a direct, positive correlation with RCA as determined for instance in the "aggregometer".

Blood Viscosity↗