One has to be careful with interpretation of testosterone, as other factors and biomarkers can make discussion murky. I find it strange that people love sharing body composition changes but I never see the inside of athletes being shared, such as fiber change and hormonal improvements. One of the interesting aspects of blood analysis of the the study of Komi and Hakkinen is that not much change in testosterone has been found in the research with most athletes, especially team sports. With hormones being so highly regulated in the body, homeostasis tends not to want to make changes. We need to drive change and it’s easy to be conservative and hope that we win the athlete lottery and just keep them healthy. What about teams with less talent? Wait to get fired as a strength coach because the roster stinks?
I am not interested in seeing injury, but seeing injury because of weak and out of shape athletes is just as bad as the bro science coach who slaps on too much weight and yells. Smart and cowardly is just as bad as dumb and risky. I think we should get more blood analysis with training to see what is truly happening during the year and career. It’s nice to believe we are making changes but without measurement we may be just getting results that anyone can get by having an athlete participate in a program. With new tools and services we can make more precise decisions to walk an increasingly narrow line with performance training.