Abstract
When a stimulated frog muscle recovers in a mixture of 79% CQ-21% Oz, it shows a diminished excess oxygen consumption and diminished recovery heat production when compared to a muscle in air. A stimulated muscle fatigues at the same rate in either the CO-Oa mixture or in air. Chemical analysis after recovery from stimulation shows no markedly larger concn. of lactic acid in the muscle recovering in CO. Hence the principal effect of CO on recovery is not inhibition of lactic acid oxidation. Further evidence of this is submitted in that the effect of CO persists undiminished in the I.A.A.-treated muscle. The principal effect of CO is described as an increase in the efficiency of recovery processes of frog skeletal muscle.

This publication has 0 references indexed in Scilit: