title: Response of plasma proenkephalin peptide F to exercise.
abstract: Plasma proenkephalin Peptide F immunoreactivity was measured in the plasma of endurance trained and untrained males at various exercise intensities. Significantly different levels were found between the two groups at rest and at 54% maximum oxygen consumption (VO2 max). Maximum levels were at 5 min of recovery for the untrained group and at 54% VO2 max and at recovery 5 min for the trained group. These data suggest an adaptation in the trained group fro the release of this peptide and further suggest it may play a role in recovery since the highest levels are following the termination of the exercise period.
mesh_terms: D000328:Adult; D004744:Enkephalin, Methionine / Q000031:analogs & derivatives* / Q000097:blood; D006801:Humans; D008297:Male; D010101:Oxygen Consumption; D010807:Physical Endurance; D005082:Physical Exertion; D011498:Protein Precursors / Q000097:blood*; D012420:Running
chemical_list: D011498:Protein Precursors; D004744:Enkephalin, Methionine; C036452:peptide F