Originally Posted by Justin Hurley

I have heard it touted that 40 years old, but can you stay injury free until then without also burning out. Also if you use gear and abuse it in your younger years, you won't be able to stay competive at 40, because gear just ain't going to work the same anymore.

You reach peak bone density at 30 years old, and tendon strength takes a good few years to be built up, not like muscle hypertrophy. You also have many factors to consider, like for instance tendon insertion, age you started powerlifting etc. I don't think it's a one size fits all answer.