ECG2age model issue

[LumiaSword]

The usage instructions in the Model Card are inconsistent with the actual ECG2Age.keras architecture, causing even the provided example input to fail. The model actually expects an input of (Batch, 5500, 3), which appears more aligned with 4-lead (3-channel) exercise ECG data than the documented 12-lead format.

Could you clarify:

1. Should the input be 12-leads resting ECG or 4-leads exercise ECG? Which specific leads are expected for the channels?
2. Does the signal require specific unit conversion or normalization to yield meaningful age predictions?

Thanks!