Based on this research and testing, Orban came up with five basic exercises (5BX), four to improve flexibility and strength and one to boost aerobic fitness. The plan was innovative in two respects. Firstly, it did not require access to specialized equipment. Many RCAF pilots were located in remote bases in northern Canada, with no access to gymnasium facilities, so it was important to offer a means of keeping fit without their use. Secondly, the plan only required that eleven minutes be spent on the exercises per day. After further research and testing involving over 600 volunteers, he produced a program with ten basic exercises (XBX) for women that required twelve minutes to complete.