TMac has scoliosis which is why he was injured a lot and has back spasms.
Tracy McGrady is on borrowed time. He has been for the past 11 years. "When I first entered the NBA and got tested by doctors and trainers," McGrady says, "they projected I'd play five or six years because of the way my body is structured."
http://www.operationsports.com/forums/p ... iosis.html“Legs, just strengthen my legs,” McGrady said. “I’ve been working on my core my whole career. That’s the reason I’m still able to play. I was only projected to play this game four years. I have a slight case of scoliosis on my back. That’s the reason I’ve had back problems. That’s the reason I have to strengthen my core.”
http://hanleyramirez.com/tmac/blogDetail/1116And where do people get this idea if you put on muscle mass your body is going to crumble, that isn't even scientifically sound
The function of muscle mass is to prevent injury and to protect bone and ligaments. The problem with most people that lift weights is that they they create muscle imbalances where one side of the body is stronger than the other due to how they lift and what exercises they do. So the body compensates and create structural issues and thus you have injury.
For example, they will only do overhead presses and then will not do lateral raises or rear delt raises and but then they'll bench press and not do any pushups and then they wonder why their shoulders hurts like hell. Or all they ever do is quad dominant squats and never do hamstring exercises. Or they just do hamstring exercises and never do squats.
Kevin Garnett and Dwight Howard have certainly put on muscle mass. Kevin Garnett was wayyyy skinner than he is now. Lebron James has put on muscle mass and when the last time he has been severely injured? Michael Jordan has put on muscle mass. Kobe Bryant has fluctuated his weight, one year he decides to be skinny, next year he decides to be buff...he just does whatever he feels that year.
The are absolutely no benefits with being skinny..never ever ever ever was and never will be.