Influence of menstrual cycle on muscle glycogen utilization during high-intensity intermittent exercise until exhaustion in healthy women
| Autor: | Tomoka Matsuda, Hideyuki Takahashi, Mariko Nakamura, Moe Kanno, Hazuki Ogata, Akira Ishikawa, Mizuki Yamada, Kayoko Kamemoto, Mikako Sakamaki-Sunaga |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Applied Physiology, Nutrition, and Metabolism. 47:671-680 |
| ISSN: | 1715-5320 1715-5312 |
| DOI: | 10.1139/apnm-2021-0532 |
| Popis: | The present study investigated the effects of the menstrual cycle on muscle glycogen and circulating substrates during high-intensity intermittent exercise until exhaustion in healthy women who habitually exercised. In total, 11 women with regular menstrual cycles completed three tests, which comprised the early follicular phase (E-FP), late follicular phase (L-FP), and luteal phase (LP) of the menstrual cycle. High-intensity intermittent exercise until exhaustion was performed on each test day. Evaluation of muscle glycogen concentration by 13C-magnetic resonance spectroscopy and measurement of estradiol, progesterone, blood glucose, lactate, free fatty acids (FFA), and insulin concentrations were conducted before exercise (Pre) and immediately after exercise (Post). Muscle glycogen concentrations from thigh muscles at Pre and Post were not significantly different between menstrual cycle phases ( P = 0.57). Muscle glycogen decreases by exercise were significantly greater in L-FP (59.0 ± 12.4 mM) than in E-FP (48.3 ± 14.4 mM, P Novelty: This study compared changes in muscle glycogen concentration across the menstrual cycle during high-intensity intermittent exercise until exhaustion using 13C-magnetic resonance spectroscopy. Our results highlight the influence of the menstrual cycle on muscle glycogen during high-intensity intermittent exercise in healthy women. |
| Databáze: | OpenAIRE |
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