ARTEFACT CORRECTION FOR HEART BEAT INTERVAL DATA

Purpose: The goal of the studies has been to construct an enhanced artefact correction method for heart rate data. The purpose was to develop the correction to be applied in both PC off-line analysis and low processor embedded systems. Methods: We created a correction module, which takes into account physiological information and tested this module using artificial interference in resting and exercising HR-data. Results: The correction module was observed to find the correct heart rate level even in situations where the number of artefacts exceeded 50 % of the total number of inter-beat-intervals. In the cases of largest number of artefacts only heart rate level was found not the variability of heart rate. With smaller quantity of artefacts the results were found satisfactory. No time or heartbeats were lost in the correction. Applications: The observed short duration of calculations enables the use of the model also in embedded systems like heart rate monitors. Conclusions: The developed artefact correction module was proven to be fast, very accurate and reliable.