title: [Effects of long-term and high intensity exercise on plasma beta-endorphin, dynorphin A1-13, leucine-enkephalin and lactate in rats].
mesh_terms: D000701:Analgesics, Opioid / Q000097:blood; D000818:Animals; D004399:Dynorphins / Q000097:blood*; D004743:Enkephalin, Leucine / Q000097:blood*; D019344:Lactic Acid / Q000097:blood; D008297:Male; D010446:Peptide Fragments / Q000097:blood*; D010805:Physical Conditioning, Animal; D051381:Rats; D017207:Rats, Sprague-Dawley; D001615:beta-Endorphin / Q000097:blood*