It's the small stuff that matters. I've been training for well over a decade, all the time on my max effort, the last five years - very heavy (I may not be the strongest bencher/suatter or deadlifter, but I don't know many people who come close to me when it comes to an overall strength on all body parts. Pretty much no exercise where I would not be able to outlift majority of people at any gym, and just few core exercises that I can't outlift experienced powerlifters, because I don't train for that. That's brave, but I'm strong as fuck not Ohearn strong, but I'm on a fraction of a gear too), yet I have not a single ache in my body anywhere, literally. And many guys I knew when I started - have multiple inuries already. Luck? To some extent probably (good joints/connective tissues), but I would not call luck 15-20 mins of extensive warmups, no exceptions, I would not call luck ten different substances (natural) that I take daily, meant to lower inflammation and other benefits, I would not call luck increasing weight veeeery slowly and having a razor sharp focus on the form, etc, etc.. All the small details matter on the long run. And these guys have figured them out to the max. Hormone regimens would be very nteresting too, even tho' that's highly individual for the most part.
Same here. Aside from slight chondromalacia in my knees (who doesn't have this?), I don't have one problem and I have been physically active (running, swimming, and then lifting, and always shooting hoops or playing handball for cardio in the summer and spring months) since twelve years old.
But this comes with an investment. I use proper form, and although I am not blessed in the strength department, I am pretty good. I have a dynamic warmup, which includes jumping rope, glute activation drills and foam rolling, and static stretching of tight muscles before every workout. Sure, it takes fifteen minutes and I might be stronger in my workouts without it, but I rather maintain strength or get stronger more slowly than some tight, inflexible, unathletic fat guy.
The warmup is like this:
Five to ten minutes of jumping rope, however long it takes to break a sweat, with a variety of single or double under, one legged shuffles, or whatever.
Glute and shoulder activation drills (superman, fire hydrants, hip thrusts)
Then the dynamic stretches:
Scorpions
Iron Cross
Dynamic quad stretch
Toy soliders
Straight legged kicks
Mountain climbers
Inch worms
I also do not do any 1 to 5 rep max shit as I have absolutely no need to. Six to eight reps for big lifts and eight to fifteen for lighter and bodyweight lifts.
Look at Jay versus Ronnie. Ronnie was far stronger, but one became Mr. O without being a future cripple.