Skip to content

Instantly share code, notes, and snippets.

@raphaelvallat

raphaelvallat/ecg_derived_respiration.ipynb

Last active April 8, 2025 22:14
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save raphaelvallat/55624e2eb93064ae57098dd96f259611 to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save raphaelvallat/55624e2eb93064ae57098dd96f259611 to your computer and use it in GitHub Desktop.
Download ZIP
Extract respiration signal and respiratory rate from ECG using R-R interval.
Display the source blob
Display the rendered blob
Raw
ecg_derived_respiration.ipynb
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
@raphaelvallat
Copy link
Author

raphaelvallat commented Dec 19, 2022

Hi @RaviDurbha,

A 4 Hz upsampling frequency is very common in HRV analysis, hence my choice. People have also used 2 Hz.

sf_up is not affected by sf or sf_orig. Actually you can discard the downsampling from 360 Hz to 100 Hz:

sf = sf_ori
ecg = filter_data(ecg, sf, 2, 30, verbose=0)

@RaviDurbha
Copy link

RaviDurbha commented Dec 20, 2022

Hi @raphaelvallat,

Thanks for the clarification. Instead of RR interval from ECG signal, I can compute Inter-beat-interval from PPG signal and still use your algorithm to compute respiration rate.

Thanks,
Ravi

@raphaelvallat
Copy link
Author

raphaelvallat commented Dec 20, 2022

Yes that should work too. Please note that this is a very simple algorithm and I'm sure there are better alternative out there.

@ArthurWangusyd
Copy link

ArthurWangusyd commented Apr 12, 2023

Hi Raphael，
Thank you very much for sharing. I'm a bit confused about some of the parameters in the code, for example is sf short for sampling frequency and does start for 155 means starting at 155 ms?
Thanks
Arthur

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment