
A novel sham HRV-biofeedback training and YETI index are proposed to improve HRV research. Applying training fidelity criteria enhances sample homogeneity and effect sizes in HRV measures.
Where Published: Sensors 2021, 21, 3670. DOI: https://doi.org/10.3390/s21113670.
Authors: Ewa Ratajczak, Marcin Hajnowski, Mateusz Stawicki, et a.
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