title: Muscle amino acid arylpeptidases and their serum changes with exercise.
abstract: Activities of serum amino acid arylpeptidases were determined in five groups of healthy male adults at rest and after various exercise types using the following substrates: Ala-, Leu-, Phe-, Tyr-, Gly- and Pro-4-Nitroanilide. The exercise-induced changes were compared to the activities of the respective enzymes in resting leg muscles. A regression function was found, showing a close correlation between the mentioned parameters in all groups. The influence of haemoconcentration and intravascular hemolysis on the postexercise measured activities was of no consequence.
mesh_terms: D000293:Adolescent; D000328:Adult; D000409:Alanine / Q000378:metabolism; D000626:Aminopeptidases / Q000097:blood*; D005998:Glycine / Q000378:metabolism; D006801:Humans; D007930:Leucine / Q000378:metabolism; D008297:Male; D009132:Muscles / Q000201:enzymology; D010649:Phenylalanine / Q000378:metabolism; D005082:Physical Exertion; D011392:Proline / Q000378:metabolism; D012420:Running; D012865:Skiing; D014443:Tyrosine / Q000378:metabolism
chemical_list: D014443:Tyrosine; D010649:Phenylalanine; D011392:Proline; D000626:Aminopeptidases; D007930:Leucine; D000409:Alanine; D005998:Glycine