| Title: |
APPETITE REGULATIONS AFTER SPRINT EXERCISE UNDER HYPOXIC CONDITION IN FEMALE ATHLETES. |
| Authors: |
CHIHIRO KOJIMA1, NOBUKAZU KASAI1, AYA ISHIBASHI1,2, YUKAKO MURAKAMI1, KUMIKO EBI1, KAZUSHIGE GOTO1 kagoto@fc.ritsumei.ac.jp |
| Source: |
Journal of Strength & Conditioning Research. Jul2019, Vol. 33 Issue 7, p1773-1780. 8p. 2 Charts, 4 Graphs. |
| Subject Terms: |
*HYPOXEMIA, *APPETITE, *ATHLETES, *EXERCISE physiology, *HORMONES, *INGESTION, *GLUCAGON-like peptide 1, *GHRELIN, *HIGH-intensity interval training |
| Abstract: |
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. [ABSTRACT FROM AUTHOR] |
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