Here's my take wrote:
I doubt it. Most of these older YouTube fitness influencers are transparent about thierTRT use unless they're selling workout programs or supplements, etc. (e.g. "Scooby 1961" & "Mark 60 fitness plus" - two popular senior influencers - are completely transparent about their TRT use).
"I Am Longevity" isn't selling supplements or workout programs, nor does he compete in any master's sport where there's drug testing.He seems obsessed with anti-aging & likes to show off his shredded physique (don't most of these older fitness influencers act that way? Lol).
Here he credits something call short-sprint interval training (SSIT) as the catalyst to his high testosterone levels:
Thanks for posting this. I don't follow influencers and I had never heard of this guy. I found a link to the study itself and it's very interesting. (link below).
Basically, an oversimplification of the study found that "sprint" ratios of 1:3 were best for VO2max and 1:9 was best for boosting T levels. However... big caveat here... The study was done with soccer players aged 16-19. I'd love to see a similar study on age 60+ recreational athletes. My guess is that both ratios would result in a bigger T boost in seniors than this study found with age 16-19 athletes.
In watching Ruggia do the sprints, I noticed the following good traits. 1) He sprinted up a slight hill. 2) He sprinted on dirt 3) He didn't use a hard start: he accelerated gradually for few steps. 4) He didn't run them all out. I think this is how a masters runner should approach this workout.
However, he was wrong about set and reps. He said run 6 sets of 4 reps. The study ran 4 sets of 6 reps. It may not make a difference, but if you're going to teach ways to boost longevity from a study, you should get the sets and reps right.

