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Hysteresis analysis of the PR-PP relation under exercise conditions

This work aims to analyse the link between PR and PP intervals under maximal and graded exercise test as well as under pyramidal exercise where the effort is not released abruptly. After defining two classical P waves processing, we propose a new criteria to evaluate the quality of the intervals estimation. Both in simulation and real cases, we show that the preprocessing based on polynomial fitting gives better results. The main output of this global processing is the enhancement of an hysteresis effect in the studied relation.