Über die chemischen Vorgänge bei der isotonischen und isometrischen Kompressionsverkürzung des Muskels

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Abstract
The phospho-creatin hydrolysis and the formation of lactic acid in the isometrically fixed muscle are smaller in the first minute of a 500 atm. pressure treatment, in spite of a considerable muscle tension, than in the isotonieally contracted muscle with little tension. If the, pressure application continues, however, the result is reversed. The "inorganic phosphoric acid" (= sum of the real and the phospho-creatin-phosphoric acid) decreases at first in both muscles below the normal value, later on increases above this value. The amts. of inorganic phosphoric acid are always greater in the isometrically fixed muscle. The solubility decrease of the proteins is the same in both muscles.

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