Some of the most expensive fighters such as the US F-14 Tomcat, F-15 Eagle, F-22 Raptor and Russian Su-27 were employed as all-weather interceptors as well as air superiority fighter aircraft, while commonly developing air-to-ground roles late in their careers.
The health service measures that best predict subjective health status should be identifiable. Following her further degree in clinical epidemiology and biostatistics, her interest turned to the development of methods to measure subjective health status.
Subjective health status was reported on a five-point scale ranging from poor to excellent. The positive effects of this aerobic training were observed 2 months after surgery on cardiorespiratory fitness, subjective health status (Western Ontario and McMaster University [WOMAC]), and walking ability THA.