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KMID : 1007520220310091207
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Food Science and Biotechnology
2022 Volume.31 No. 9 p.1207 ~ p.1212
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Effects of caffeine ingestion and thermotherapy on blood orexin circulation in humans
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Park Tae-Hwan
Lee Hye-Jin
Kwon Ryeo-Won
Lee In-Ho
Lee Seung-Jea
Park Jong-In
Choo Eon-Ah
Lee Jeong-Beom
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Abstract
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Caffeine and orexin can affect awakening, neuroendocrine, and sympathetic nerve function. Our previous study has reported that caffeine intake can increase human body temperature. However, little is known about the combined effects of thermotherapy and caffeine intake on human serum orexin concentrations. Forty-two healthy male subjects with age of 26.72?±?5.05 years, height of 174.10?±?7.09 cm, and body weight of 74.68?±?8.91 kg participated in this study. They were randomly assigned to a control (CON) group (n?=?21) and a caffeine (CAFF) group (n?=?21). After thermotherapy (half-body immersion in a hot water bath at 42?±?0.5 °C, circulating orexin level increased more (p?
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KEYWORD
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Caffeine, Orexin, Thermotherapy, Neuroendocrine, Sympathetic nervous system
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