This is the issue. Weightlifting and Bodybuilding, can be set totally apart.
There’s plenty of body builders that can’t move hardly any weight for their comparative mass.
In reality bodybuilders use a higher rep, lower weight style.
The best hypertrophy is between 8-12 reps. The best power building is 6 reps or less.
You say Mo Rivera throws 90’s and he’s skinny.
How bout an olympic lifter that weights 150lbs, and can put 400 pounds in the air over his head, starting it from the floor?
Here’s a video to illustrate explosiveness
The man weighs 169.4 lbs, he snatched 379.5 lbs.
Cardio, translates ZERO to PITCHING STAMINA!
Cardio stimulates type I muscle fibers. The energy conversion process is totally different.
Anaerobic activity (Type II fiber) produces approximately 2 ATP
Oxidative respiration (Type I fiber) produces upwards of 30 ATP
To use oxidative respiration you must be exerting yourself continuously for approxiately 12 seconds.
If your exerting yourself for more than a few seconds a pitch your doing something wrong.
The goal is to create more Type II fiber, or for your Type II fiber to have the ability to do the same task with more power.
Why is it necessary to train your body to better do a procces that is almost NEVER used in baseball.
Training type one fiber will not ever translate to baseball.
You need to understand bodybuilding is really it’s own sport/event
Training for a power sport and bodybuilding are on opposite ends of the weight lifting spectrum.
The MOST EXPLOSIVE ATHLETES IN THE WORLD (yes I did say that)
ARE infact Olympic Lifters. They can burst out of a sprint with the olympic sprinters, even though they do not train for that.
If you train properly through a full range of motion, you should not have problems with tendons being weak. I am actually more flexible, and feel more resilient than before I started lifting.
Injuries are results of poorly designed training programs, and poor understanding of what to do in the weight room. I say this after experiencing basketball conditioning in which kids have no idea what they are doing in reality.