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Circular correlation of core body temperature, heart rate, LF/HF, and log HF. The circular correlation of the mean value ± SEM for core body temperature (A), heart rate (B), LF/HF (C), and log HF (D) in the 2 dietary conditions. Note that the 2M condition was plotted according to the 3M condition. LF/HF, the power ratio of low frequency to high frequency; HF: high frequency.
