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Increased levels of FFA during passive heat loading after a 2-week repeated heat load in Koreans

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Abstract

The purpose of this study was to determine whether repeated heat load is closely related to circulating levels of free fatty acids (FFA) during repeated passive heat loading (PHL), defined as immersion of the lower body up to an umbilical level in hot water, 42 ± 0.5 °C (three times/week, 30 min/day) for 2 weeks. There were significant correlations between mean body temperature and FFA before and after repeated heat load (p < 0.001, respectively), and the level of FFA was significantly higher after repeated heat load during PHL (p < 0.01). The threshold of mean body temperature for lipolysis was lowered by repeated heat load and enhanced lipolysis during PHL. However, caution is needed for diabetic individuals.

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Acknowledgments

The authors thank the subjects whose participation made this study possible.

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No competing financial interests exist.

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Authors and Affiliations

  1. Department of Physiology, College of Medicine, Soonchunhyang University, 366-1 Ssangyong-dong, Cheonan, 331-946, Republic of Korea

    Jeong Beom Lee

  2. Department of Health Care, Graduate School, Soonchunhyang University, Asan, 336-745, Republic of Korea

    Tae Wook Kim

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  1. Jeong Beom Lee
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  2. Tae Wook Kim
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Correspondence to Tae Wook Kim.

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Lee, J.B., Kim, T.W. Increased levels of FFA during passive heat loading after a 2-week repeated heat load in Koreans. Int J Biometeorol 59, 473–475 (2015). https://doi.org/10.1007/s00484-014-0849-x

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  • DOI: https://doi.org/10.1007/s00484-014-0849-x

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