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. 2022 Feb 4;12:1918. doi: 10.1038/s41598-021-03582-4

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© The Author(s) 2022, corrected publication 2022

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Means of the minimum (MinHR), mean (MeanHR) and maximum (MaxHR) heart rates for the PT = pre-test phase T = treatment phase, L = learning phase. Letters that differ within each phase differ significantly at p < 0.005. Phases without letters do not differ.