AFE4960: Input circuit configuration

Part Number: AFE4960

Tool/software:

Hi.

I have a question about the input circuit configuration of AFE4960.

I configured the ECG and RESP input terminals by referring to the ECG AND RESPIRATION SECTION circuit diagram on page 33 of the AFE4960 EVM User's Guide document.

What I'm curious about is the purpose of the resistor and capacitor values ​​connected to each input terminal?

Is it for filtering? Or is it for patient protection?

Why were those values ​​chosen?