Electrolytic exchange in organism under the conditions of vibration. Experimental studies.
The study deals with a wide spectrum of indices of the electrolytic metabolism--sodium, potassium, calcium, chlorides, magnesium, iron, copper, zinc, cobalt and manganese--in blood, organs and tissues under the conditions of experimental chronic exposure of whole-body vibration frequency of 50 and 150 Hz and velocity of 85 mm.s-1 during a three months experiment (3 h daily) Reference methods were used for the determination of the indices--atom absorption spectrophotometry (variants with flame and without flame), coulometric chlorine titrator, flame photometry, etc. The indices were examined three times (1, 2 and 3rd months). Statistic analysis of the data showed significant changes in the number and the values of the indices and their character (increase or decrease) in comparison with the control values. The indices modifications occur early (at the end of the first month) and they proceed till the end of the experiment (till the end of the 3rd month) during the exposure to both frequencies, but are strongly expressed in the case of high frequency vibrations. The disorders in electrolytic metabolism established in the experiment testify that people exposed to vibrations are likely to suffer analogical changes and develop other pathologies--diseases of cardiovascular system, of blood and haematopoietic organs, etc. as well as an increase of specific disorders in connection with vibration exposure.
Tzvetkov
D
D
Research Institute of Hygiene and Occupational Diseases, Sofia, Bulgaria.
Razboinikova
F
F
Dimitrov
D
D
Petrov
I
I
D000818:Animals; D004573:Electrolytes / Q000378:metabolism*; D007474:Ion Exchange; D008297:Male; D051381:Rats; D014732:Vibration / Q000009:adverse effects*
D004573:Electrolytes