Multimedia Tools and Applications

, Volume 77, Issue 18, pp 23317–23334 | Cite as

Heart rate monitoring, activity recognition, and recommendation for e-coaching

  • Toon De Pessemier
  • Luc Martens


Equipped with hardware, such as accelerometer and heart rate sensor, wearables enable measuring physical activities and heart rate. However, the accuracy of these heart rate measurements is still unclear and the coupling with activity recognition is often missing in health apps. This study evaluates heart rate monitoring with four different device types: a specialized sports device with chest strap, a fitness tracker, a smart watch, and a smartphone using photoplethysmography. In a state of rest, similar measurement results are obtained with the four devices. During physical activities, the fitness tracker, smart watch, and smartphone measure sudden variations in heart rate with a delay, due to movements of the wrist. Moreover, this study showed that physical activities, such as squats and dumbbell curl, can be recognized with fitness trackers. By combining heart rate monitoring and activity recognition, personal suggestions for physical activities are generated using a tag-based recommender and rule-based filter.


Heart rate Activity recognition Recommendation E-coaching Health Mobile 



The authors would like to thank Enias Cailliau for his extensive research and implementation work in the context of this study.


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Imec - WAVES - Ghent UniversityGentBelgium

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