On differences in the concentration of sugar, lactic acid and potassium in the arterial and venous blood during rest, exhausting exercise and subsequent repose

Hamar, Norbert and Kovách, Arisztid (1948) On differences in the concentration of sugar, lactic acid and potassium in the arterial and venous blood during rest, exhausting exercise and subsequent repose. A Magyar Tudományos Akadémia Tihanyi Biológiai Kutatóintézetének évkönyve, 18. pp. 398-406. ISSN 0365-3005

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Abstract

1. The concentrations of glucose, lactic acid and potassium in the arterial and venous blood of dogs, before, during and after forced exercise have been compared. 2. The glucose level sinks at the end of the first hour of exercise in the venous blood more than in the arterial; at the! end of the second hour the arterial level is also low. The lactic acid rises rapidly in both bloods during the first hour, but remains at this level in both bloods during the second hour. The K-level behaves likewise. 3. During rest the arterial blood-sugar level is restored sooner than that of the vtenous. Lactic acid and K-concentration sink at the end of the first hour of rest in both bloods to the normal level. Indeed it is possible that the K-concentration is below the initial normal level. 4. These results are discussed together with those of other authors on the mechanism of glucose-, lactic acid- and K-liberation, binding and elimination from the blood.

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