I see that there are now fields in trainings on the gps-sport portal for heart rate, cadence and temperature data. I assume this is to accomodate the new capability for measuring it direct from the new BT monitors arriving soon?
But wouldn't it be easy to also take this data from Polar HRM files? These can already be uploaded to obtain a HR vs time graph. As well as HR data (every 5 sec min/max/av), these files also contain a stack of data which is easy to extract, such as cadence (if the user has a Polar cadence monitor) and temperature.