[The electrolyte balance of the blood in dogs exposed to multiple +Gz overloads].
Experiments of the series were carried out using 7 noninbred dogs. In the first series, the animals were exposed to + GZ acceleration of increasing value once or twice a week during 5 months. Each exposure continued until distinct cardiac arrhythmias were seen in ECG. Two weeks after the onset of exposure the dogs displayed hyponatremia and higher K-Na coefficient and two months later they showed hyperkalemia and hypermagnesemia which led to a 1.5 G increase of acceleration tolerance. In the second experimental series, the animals exhibited a beneficial effect of hypermagnesemia on circulation parameters and frequency of cardiac arrhythmias in response to a single + GZ exposure. These observations have demonstrated that electrolyte balance plays an important part in the development of adaptation to sustained acceleration.
Vartbaronov
R A
RA
Glod
G D
GD
Popov
I G
IG
Uglova
N N
NN
Sarycheva
N N
NN
Rolik
I S
IS
D000054:Acceleration; D000222:Adaptation, Physiological / Q000502:physiology*; D000818:Animals; D002118:Calcium / Q000097:blood; D004285:Dogs; D004573:Electrolytes / Q000097:blood*; D008274:Magnesium / Q000097:blood; D011188:Potassium / Q000097:blood; D012964:Sodium / Q000097:blood
D004573:Electrolytes; D012964:Sodium; D008274:Magnesium; D011188:Potassium; D002118:Calcium
Elektrolitnyĭ balans krovi sobak pri mnozhestvennykh peregruzkakh +Gz.