iron addict
New member
This is an excerpt from a Charles Poliquin Q & A
Exercise prescription specialist Paul Chek of San Diego has identified what he calls pattern overload syndrome. In his seminar and videos, he stresses that the Smith machine bench press is one of the most common sources of shoulder injuries:
"People get a pattern overload from using the Smith machine. The more fixed the object, the more likely you are to develop a pattern overload. This is due to the fact that training in a fixed pathway repetitively loads the same muscles, tendons, ligaments and joints in the same pattern, encouraging micro-trauma that eventually leads to injury. If Johnny Lunchpail always uses a Smith machine for his bench presses, he ends up working the same fibers of the prime movers in the bench press all of the time: triceps brachii, pectoralis major, long-head of the biceps, anterior deltoids, and serratus anterior. But he can't change the pathway?the bar will always be in the same position."
Because of the mechanics of the human shoulder joint, the body will alter the natural bar pathway during a free-weight bench press to accommodate efficient movement at the shoulder. A fixed bar pathway doesn't allow alteration of this pathway for efficient movement of the joint, thereby predisposing the shoulder to harmful overload via lack of accommodation.
All in all, the Smith machine is a training piece for dorks. If you're interested in training longevity, you're far better off sticking to the standard barbell and dumbbell exercises or try the newer chest machines from Magnum and Flex.
Exercise prescription specialist Paul Chek of San Diego has identified what he calls pattern overload syndrome. In his seminar and videos, he stresses that the Smith machine bench press is one of the most common sources of shoulder injuries:
"People get a pattern overload from using the Smith machine. The more fixed the object, the more likely you are to develop a pattern overload. This is due to the fact that training in a fixed pathway repetitively loads the same muscles, tendons, ligaments and joints in the same pattern, encouraging micro-trauma that eventually leads to injury. If Johnny Lunchpail always uses a Smith machine for his bench presses, he ends up working the same fibers of the prime movers in the bench press all of the time: triceps brachii, pectoralis major, long-head of the biceps, anterior deltoids, and serratus anterior. But he can't change the pathway?the bar will always be in the same position."
Because of the mechanics of the human shoulder joint, the body will alter the natural bar pathway during a free-weight bench press to accommodate efficient movement at the shoulder. A fixed bar pathway doesn't allow alteration of this pathway for efficient movement of the joint, thereby predisposing the shoulder to harmful overload via lack of accommodation.
All in all, the Smith machine is a training piece for dorks. If you're interested in training longevity, you're far better off sticking to the standard barbell and dumbbell exercises or try the newer chest machines from Magnum and Flex.