Power exerted during activity, due to drag forces, altitude change, etc. Negative means power gain, e.g. when going downhill or braking. When in kcal/h or kJ/h, it also takes efficiency and BMR into account.
It is recommended to use a custom storage location for your tracks and dataCustom data storage location is recommended and useful to prevent accidental data loss if the app is uninstalled, and to make backups easier.