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KMID : 1101720180220040055
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Physical Activity and Nutrition
2018 Volume.22 No. 4 p.55 ~ p.61
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Effects of diet before endurance exercise on hepcidin response in young untrained females
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Hayashi Nanako
Ishibashi Aya
Goto Kazushige
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Abstract
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Purpose: We examined the effects of diet before endurance exercise on hepcidin response in young untrained females.
Methods: Ten young untrained females [age: 20.6 ± 0.8 y, height: 157.5 ± 1.0 cm, weight: 54.4 ± 1.5 kg, and maximal oxygen uptake (VO2max): 35.9 ± 1.1 mL/kg/min] were involved in two experimental conditions with a crossover design. The two conditions were separated by approximately 1 month, and each condition was performed during the follicular phase. Subjects completed 60 min of pedaling at 65% of VO2max after consuming a meal (FED) or not consuming a meal (CON). Blood samples were collected before, immediately after, and 3 h after exercise.
Results: Serum ferritin levels before exercise did not differ between the two conditions (P > 0.05). Blood glucose and lactate levels were significantly elevated immediately after exercise only under the FED condition (P < 0.05). Serum iron levels were significantly elevated after exercise under both conditions. However, the plasma interleukin-6 and serum hepcidin levels were not significantly different 3 h after exercise under either condition (P > 0.05).
Conclusion: Consuming a meal before endurance exercise at moderate intensity did not affect exercise-induced hepcidin elevation in young untrained females.
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KEYWORD
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Iron metabolism, Interleukin-6, Carbohydrate
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