Methodological framework for heart rate variability analysis during exercise: application to running and cycling stress testing |
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| Authors: | David Hernando Alberto Hernando Jose A Casajús Pablo Laguna Nuria Garatachea Raquel Bailón |
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| Institution: | 1.Biomedical Signal Interpretation, Computational Simulation (BSICoS) Group at the Aragón Institute of Engineering Research (I3A), IIS Aragón,University of Zaragoza,Zaragoza,Spain;2.Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN),Centro de Investigación Biomédica en Red (CIBER),Zaragoza,Spain;3.Centro Universitario de la Defensa (CUD),Academia General Militar (AGM),Zaragoza,Spain;4.Departamento de Fisiatría y Enfermería, Facultad de Ciencias de la Salud y del Deporte, GENUD (Growth, Exercise, Nutrition and Development) research group,Instituto Agroalimentario de Aragon IA2 (Universidad de Zaragoza-CITA), IIS Aragón, Zaragoza,Zaragoza,Spain;5.Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición (CIBERObn),Zaragoza,Spain;6.EXERNET,Red de Investigación en Ejercicio Fisico y Salud para Poblaciones Especiales,Zaragoza,Spain |
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| Abstract: | Standard methodologies of heart rate variability analysis and physiological interpretation as a marker of autonomic nervous system condition have been largely published at rest, but not so much during exercise. A methodological framework for heart rate variability (HRV) analysis during exercise is proposed, which deals with the non-stationary nature of HRV during exercise, includes respiratory information, and identifies and corrects spectral components related to cardiolocomotor coupling (CC). This is applied to 23 male subjects who underwent different tests: maximal and submaximal, running and cycling; where the ECG, respiratory frequency and oxygen consumption were simultaneously recorded. High-frequency (HF) power results largely modified from estimations with the standard fixed band to those obtained with the proposed methodology. For medium and high levels of exercise and recovery, HF power results in a 20 to 40% increase. When cycling, HF power increases around 40% with respect to running, while CC power is around 20% stronger in running. |
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