[Relationship between metabolic and hemodynamic characteristics during isometric tetanus of the cat gastrocnemius muscle].

In anesthetized cats, the increase in duration of the isometric tetanic contraction of the m. gastrocnemius from 7 to 30 sec elicited a 4-fold increase in the muscular mechanical performance. During the postcontraction hyperemia, a 5-6-fold increase in the rate of lactic acid and inorganic phosphates removal into venous blood were opposed to only a 1.

[Effect of potassium ions on the reactions of resistive and capacitive vessels in the skeletal muscles and intestines].

L. a. administration of 4.

[The effect of acidic metabolic products on the capacitance and resistance vessels of the skeletal muscles and intestines].

Under conditions of the resistography of the skeletal muscle and intestinal vessels intraarterial injections of the acetic and lactic acid solutions in 75% cases evoked significant dilatation of the resistance vessels. Simultaneously enhancement of the venous outflou takes place, which is determined mainly by venous constriction and partly by the transfer of liquid from tissues into the blood. The rise of the venous outflow was lasted for 45 sec.