title: The Effect of a 20 km Run on Appetite Regulation in Long Distance Runners.
abstract: The purpose of the present study was to investigate appetite-related hormonal responses and energy intake after a 20 km run in trained long distance runners. Twenty-three male long-distance runners completed two trials: either an exercise trial consisting of a 20 km outdoor run (EX) or a control trial with an identical period of rest (CON). Blood samples were collected to determine plasma acylated ghrelin, peptide YY3-36(PYY3-36) and other hormonal and metabolite concentrations. Energy intake during a buffet test meal was also measured 30 min after the exercise or rest periods. Although plasma acylated ghrelin concentrations were significantly decreased after the 20 km run (p< 0.05), plasma PYY3-36did not change significantly following exercise. Absolute energy intake during the buffet test meal in EX (1325 ± 55 kcal) was significantly lower than that in CON (1529 ± 55 kcal), and there was a relatively large degree of individual variability for exercise-induced changes in energy intake (-40.2% to 12.8%). However, exercise-induced changes in energy intake were not associated with plasma acylated ghrelin or PYY3-36responses. The results demonstrated that a 20 km run significantly decreased plasma acylated ghrelin concentrations and absolute energy intake among well-trained long distance runners.
authors: Graduate School of Sport and Health Science, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan. sh0007ek@ed.ritsumei.ac.jp.
authors: Chihiro
authors: C
authors: Kojima
authors: Graduate School of Sport and Health Science, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan. aya.ishibashi@jpnsport.go.jp.|Department of Sports Science, Japan Institute of Sports Science, Nishigaoka, Kitaku, Tokyo 115-0056, Japan. aya.ishibashi@jpnsport.go.jp.
authors: Aya
authors: A
authors: Ishibashi
authors: Graduate School of Sport and Health Science, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan. ab@fc.ritsumei.ac.jp.
authors: Kumiko
authors: K
authors: Ebi
authors: Graduate School of Sport and Health Science, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan. kagoto@fc.ritsumei.ac.jp.
authors: Kazushige
authors: K
authors: Goto
mesh_terms: D000215:Acylation; D001069:Appetite Regulation; D056352:Athletes; D015536:Down-Regulation; D002149:Energy Intake; D005221:Fatigue / Q000097:blood / Q000209:etiology / Q000378:metabolism / Q000517:prevention & control; D054439:Ghrelin / Q000097:blood* / Q000378:metabolism; D006801:Humans; D006815:Hunger; D007564:Japan; D008297:Male; D062407:Meals; D010101:Oxygen Consumption; D010446:Peptide Fragments / Q000097:blood; D019894:Peptide YY / Q000097:blood; D010807:Physical Endurance; D005082:Physical Exertion; D011499:Protein Processing, Post-Translational; D012420:Running; D012528:Satiety Response; D057566:Self Report
chemical_list: D054439:Ghrelin; D010446:Peptide Fragments; D019894:Peptide YY; C061785:peptide YY (3-36)
keywords: appetite-related hormones; athletes; energy intake; long distance run