The purpose of this study was to investigate relationships between anorectic gut hormone levels and energy intake timing after aerobic exercise. Seven young male subjects received a standardized breakfast, which was followed by constant cycling exercise at 50% VO₂max for 60 min. At lunch, a test meal was presented 30 minutes (30min session), 60 minutes (60min session), and 120 minutes (120min session) after aerobic exercise, and energy intake was calculated. Blood samples were obtained during three sessions for measurements of peptide YY (PYY) and glucagon-like peptide-1 (GLP-1). Exercise significantly increased PYY and GLP-1 levels, and this effect was maintained during the post-exercise period of 30min and 60min sessions for GLP-1. Energy intake was significantly higher after 120min session compared with 30min and 60min sessions. After aerobic exercise, increase in GLP-1 was maintained during the post-exercise period of 30min and 60min sessions is likely to be associated with energy intake within 60 minutes after exercise was lower than those after 120min session.

DESCENTE SPORTS SCIENCE Vol.31/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE