Its not them (the choaches) but companies that see where they can make supportive equipment that is legal in competition. the supportive equipment would help the lifters in terms of injuries, add some weight to their lifts, etc. The fact that it is in the Olympics will not deter the companies, it might actually make it more of a profitable business as there would be more competitors world wide that would buy it. Imagine all the masters that wish to continue lifting, and have all these nagging injuries.So how are they kept out? Its not just the honor of the Olympics. That is a romantic view of it. If that was the case there would not be steroids disgracing the athletes, their countries they represent, and the sport as a whole.BTW, I am dead set against gear companies, and do not want them in. I am just curious how they did not get into Olympic lifting, and would like to know how. Powerlifting could use some advice from this.
If you look at the gear for powerlifting you will notice that the gear limits range of motion. Those silly looking bench shirts don't allow the wearer to put his arms at his sides. Some of the guys wrap their knees so tight that their legs barely bend until there is several hundred pounds pushing the lifter down to the floor. The squat suits are harder to bend over in.Now analyze the movements of Olympic lifting. Both lifts require a pull and a push. No shirt can aid in both movements as they oppose each other. Such a shirt would cancel itself out. Also, lifters must be able to start in a full squat under their own body weight. Strapping the knees too tight would hinder the setup. Belts can get in the way as the bar passes it. I know I have hit my belt several times on a clean. High top boots used to be used but have become extinct due to the restriction of the range of motion. If you look at many of the historical pictures of the great lifters of the past in high top shoes, you may notice many of them have them tied as a low top leaving the top open to allow for greater range of motion.So gear companies would love to get into the Olympic lifting scene, but there is nothing that would really aid the lifter in a sport that requires such extremes in range of motion and opposing movements (pull and push). As Chris already said in the end it is just you vs. the bar and bumpers. It is a beautifully simple sport!
Olympic Weightlifting is a pure test of athlete vs. barbell. You've got no suits or shirts to help you.