The RR combines the benefits of formation running and individual performance at higher training intensities. Soldiers will run in formation for a specified time (no more than 15 minutes), then released to run as fast as they can back to the starting point. Upon completion of the release run, additional PRT activities may be conducted or recovery performed. Refer to Table 10-2 for endurance and mobility activities, prescriptions of intensity, duration, and volume within the toughening and sustaining phases. In addition, Chapter 5, Planning Considerations, provides the template for commanders and PRT leaders to implement endurance and mobility activities into their PRT programs.