Abstract: Described are shoes for ball sports including an upper having an outer surface. An actuator is configured to change at least one surface property of a portion of the outer surface of the upper, and a sensor is configured to be sensitive to movements of the shoe. A processing unit is connected to the actuator and the sensor and configured to process sensor data retrieved from the sensor and to cause the actuator to change the at least one surface property of the portion of the outer surface of the upper if a predetermined event is detected in the sensor data.

Abstract: Described are shoes for ball sports including an upper having an outer surface. An actuator is configured to change at least one surface property of a portion of the outer surface of the upper, and a sensor is configured to be sensitive to movements of the shoe. A processing unit is connected to the actuator and the sensor and configured to process sensor data retrieved from the sensor and to cause the actuator to change the at least one surface property of the portion of the outer surface of the upper if a predetermined event is detected in the sensor data.

Abstract: Described are shoes for ball sports including an upper having an outer surface. An actuator is configured to change at least one surface property of a portion of the outer surface of the upper, and a sensor is configured to be sensitive to movements of the shoe. A processing unit is connected to the actuator and the sensor and configured to process sensor data retrieved from the sensor and to cause the actuator to change the at least one surface property of the portion of the outer surface of the upper if a predetermined event is detected in the sensor data.

Abstract: Described are methods and systems for associating frames in a video of an activity of a person with an event. The methods include recording a video of an activity of a person; storing a time-series of a plurality of sensor data (82) obtained from a sensor assembly (12) of at least one sensor (31, 32, 33, 34, 35) coupled to the person while the person is performing the activity; synchronizing the video with the sensor data (82); detecting an event in the time-series; and associating the event with at least one corresponding frame in the video showing the event.

Abstract: A sole for a sports shoe comprises a plurality of profile elements and a friction element. The profile elements are distributed such that the friction element can contact a sports ball to increase the friction between a lower side of the sole and the sports ball.

Abstract: Described are supporting elements for a shoe, in particular for soccer shoes or American football shoes, as well as a sole and a shoe with a supporting element. The supporting element includes a first bending stiffness for bendings from an initial unbent state up to an upper end of a threshold angle range, and a second bending stiffness for bendings beyond the upper end of the threshold angle range, wherein the second bending stiffness is greater than the first bending stiffness.