Abstract: Notifications for instructing user behavior can be determined and presented when appropriate. Current fitness data are accessed. This data is used to determine whether a user fitness goal is likely to be achieved. If not, a notification may be determined and presented at a user device.

Abstract: Various embodiments are directed to cart grounding devices for conveyor assemblies and methods of using the same. In various embodiments, a cart grounding device for a conveyor assembly may comprise a frame engagement element configured for attachment to at least a portion of a conveyor assembly; an arm assembly comprising an arm element hingedly connected relative to the frame engagement element; and a cart interface component configured to physically engage a connected plurality of conveyor carts of the conveyor assembly to provide a ground path from the conveyor carts to a ground, the cart interface component comprising one or more grounding wheels configured to physically contact the conveyor carts and rotate about a respective central wheel axle based on the physical contact with the conveyor carts, wherein the arm assembly defines a biased configuration that biases the cart interface component in a direction towards the conveyor carts.