Appetite Regulations After Sprint Exercise Under Hypoxic Condition in Female Athletes

• Chihiro Kojima ; Nobukazu Kasai ; Aya Ishibashi ^[2] ; Yukako Murakami ^[1] ; Kumiko Ebi ^[1] ; Kazushige Goto ^[1]
  1. [1] Ritsumeikan University

     Ritsumeikan University

     Kamigyō-ku, Japón

     
  2. [2] Japan Institute of Sports Sciences
• Localización: Journal of strength and conditioning research: the research journal of the NSCA, ISSN 1064-8011, Vol. 33, Nº. 7, 2019, págs. 1773-1780
• Idioma: inglés
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• Resumen

  • The present study determined changes in appetite-regulating hormones and energy intake after high-intensity interval exercise (HIIT) under hypoxic conditions (HYP) in trained female athletes. Fifteen female athletes completed 3 trials on different days of either HIIT under HYP, HIIT under normoxic conditions (NOR), or rest in normoxia (CON). Exercise trials consisted of 2 successive sets of 8 repeated bouts of a 6-second maximal sprint separated by a 30-second rest. Blood samples were obtained to measure plasma acylated ghrelin, glucagon-like peptide-1 (GLP-1), and metabolite concentrations. Energy intake during an ad libitum buffet meal test was evaluated 30 minutes after exercise or rest. Plasma acylated ghrelin concentrations decreased significantly after exercise (p <= 0.001), but no difference was observed between the HYP and NOR. Plasma GLP-1 concentrations did not differ after exercise, with no difference between the HYP and NOR. Although absolute energy intake in the HYP (634 +/- 67 kcal) and NOR (597 +/- 63 kcal) was significantly lower than that in the CON (756 +/- 63 kcal, p = 0.006), no difference was observed between the HYP and NOR. These results show that HIIT under hypoxic and NOR lowered plasma acylated ghrelin concentrations and energy intake.