Williams Flexion

whiplash injuries are not generally recognized as serious, disabling injuries they may be. Many times the term litigation neurosis "is used to describe those who complain of persistent symptoms in what appears to be a minor accident. Many studies have been conducted to determine whether or not the litigation neurosis" (conscious or unconscious, the exaggeration or fabrication of complaints) plays an important role in accelerating the pass / deceleration (CAD) cases (1,2,3,4,5,6, 7). These studies have shown that conflicts can play an important role in the outcome of CAD trauma. In fact, recent research indicates that much more impact on the lives of the victim for a period much longer than had been believed before.

First, we must dispel the widespread belief that equals the amount of damage to the vehicle with the degree of injury to its occupants. In fact, it is often the collision causing minor damage to the vehicle causing great harm to its occupants. To understand why this is so, we must understand the difference between elastic and plastic deformation of the vehicle.

The elastic deformation involves a momentary deformation of the steel, followed by a reaction spring back to its original form (10). The collision energy is not absorbed, but acts similarly to that of a cue ball when it strikes another billiard ball. The white ball (in this case the vehicle striking another) stops. The second ball (the vehicle is pressed) is rapidly accelerated. It is precisely this rapid acceleration is the mechanism of injury.

Plastic deformation, on the other hand, is permanent. The collision energy is absorbed by the steel. It collapses on itself and stays there. plastic deformation is what happens when you break two empty milk cartons together. The occupants of the car (body shop) want a plastic collision. The best cars "accordion" on impact, allowing the car to absorb the labor (9). When the car does not absorb the force, its occupants (9)

For simplicity we assume that the vehicle is a car with one occupant: a fifty year old female. She was stopped at a red light when another car from behind his success, at eight miles per hour (the speed that the experimenters used to calculate the G-Force "of a rear-end collisions (10)). His foot was torn off the brake (as happens often) and his car accelerates forward.

First, it is thrown back. If the restraint is properly adjusted or if she has a car seat that integrates the headrest in its design (high-back seat), the head will hit. This limits hyperextension. Often, however, the headrest is left in its lowest position. This leads to act as a fulcrum around which occurs even greater harm. Even if the head restraint so well ~ settled, if the pilot is leaning forward at impact (a habit), the effect of the head restraint will be decreased. (11))

Ramping is another phenomenon that must be taken into account. This is an upward movement toward the top of the seat that is unintentionally impact (12). If the driver is, the ramp can cancel the effect of the head restraint at all, because his head will be thrown on top of the seat.

Once it has been pushed back into the seat opposite her. Now, his chest and shoulders begin to move forward. (At this stage, his head is still stuck to the back.) Suddenly, his head whips forward. In an eight mile collision time, this force was measured at five (5) times the force of gravity (10)! The safety harness while saving her from a serious head injury, actually increases the risk of neck injuries by stopping the body - which increases the speed on his head. (Tous.