GH1 and sarcopenia: The results of these studies have been inconsistent and there appears to be a close interplay between GH treatment/exercise and sex steroid therapy on the improvement of muscle mass/strength in sarcopenia with most studies showing that one intervention alone is less likely to lead to increase in muscle mass/strength (Taaffe et al., 1994; Papadakis et al., 1996; Lange et al., 2000; Blackman et al., 2002; Giannoulis et al., 2006).