1. An apparatus comprising: a plurality of structures configured to form a boundary of vertically-extending walls defining an inner region, wherein the plurality of the structures each comprise: a first surface facing the interior region of the apparatus; a first display device on or in proximity to the first surface, such as to be displayable to a user within the interior region; and a sensor operatively connected to the first display device configured to detect an impact force; a processor; and a non-transitory computer-readable medium comprising computer-executable instructions that when executed by the processor, cause the processor to perform: operating at least one of the display devices to instruct a first user to perform a first fitness activity configured to simulate a first sporting action of a specific sport; using electronic data to determine an impact force resulting from a sporting device contacting a location of the first surface of a structure; receiving physiological data from a physiological sensor; determining a sport-specific fitness parameter by using detected impact forces from at least one sporting device contacting at least a portion of the first surfaces of the structures; and operating at least one of the display devices to instruct a first user to perform a second fitness activity configured to simulate a second sporting action of the specific sport.