Testosterone Precursors: Use and Abuse in Pediatric Athletes

Efeitos dos esteroides anabólicos androgênicos sobre o útero e parâmetros reprodutivos de ratas adultas

“…Em ratas tratadas apenas com decanoato de nandrolona foi observado aumento no peso corporal 16,20 , similarmente ao resultado obtido no presente estudo, nas fêmeas tratadas com decanoato de nandrolona, ésteres de testosterona e concomitantemente com as duas drogas. Considerando que, em doses terapêuticas, a testosterona não tem a capacidade de aumentar a massa muscular nem o desempenho atlético, os usuários saudáveis têm se autoadministrado doses de dez a 100 vezes superiores que as terapêuticas, causando, consequentemente, o hiperandrogenismo 21 .…”

Steroid Prohormones: Effects on Body Composition in Athletes

“…Although several prohormones are considered as AAS, and are banned by many sports governing bodies, including the International Olympic Committee (IOC), they are semi-legal substances available from many retail outlets, including internet health food stores. The overall prevalence of prohormones use is not known, although several reports indicated that prohormones are among the most popular dietary supplements especially in adolescent athletes (Smurawa & Congeni 2007). Even though usage has decreased by over 50% since 1989, steroid use in sport is still a serious problem.…”

Effects of supraphysiological doses of nandrolone decanoate in Achilles tendon of rats

“…The doses administered can be 10 to 100 times higher than the therapeutic recommendations, giving rise to hyperandrogenism. Even though these amounts promote increased strength and greater muscle development, a hormonal disorder is developed with a variety of harmful consequences (2).…”