ABSTRACT
Nowadays, wearables such as smartphones, smart watches, or fitness trackers are very popular tools to monitor our physical activity levels and behaviour. They can store certain parameters of how we move and then provide us with information about our current activity or a summary of our activity throughout a certain period of time. Augmented feedback is classically provided as “knowledge of result” (KR), which refers to the qualitative or quantitative outcome of a motor task with respect to the main goal of the movement, or as “knowledge of performance” (KP), addressing the quality or pattern of a movement. One example of KR would be to inform an athlete about the velocity of a tennis serve, whereas KP would focus on the movement itself, such as the movement of the wrist when hitting the ball. Augmented feedback has at least two main functions: it serves as guidance towards the correct movement execution and it enhances motivation of the performer.
