Hello. I want to measure HRV before activity, during activity and after activity. Each measurement will take 5 minutes. I have limited budget and i m searching for a portable device. And it must be reliable for scientific research. I've found some alternatives like shimmer ear clip, polar watches, polar chest strap and some finger and you may offer me different devices. What is the best option for me?
Although the tools you mentioned are reliable but It's better to use polar H10 for measuring HRV.
To study HRV in a scientific research environment it's important to record the ECG. The ECG is the basis for heart beat detection and once its saved by the device you are able to check, whether all heart beats are correctly identified.
We made good expierence with Hexoskin Hx1 and Faros 180°/360°.
https://www.researchgate.net/post/Could_anyone_recommend_a_validated_device_to_measure_heart_rate_variability_Preferably_a_portable_device
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