These limbs are made with springs, shock absorbers, some having a graphite foot or dynamic foot, and a force sensor. Most runners in the Paralympics have the hook limbs, that curve up like a hook for the nice rotation when running. According to the dispute over prosthetics, the report on the limbs was that they use 25% less energy than natural legs. This means that the springs and shock absorbers take the pressure away from the upper legs. Another report that received was that, there is less vertical motion combined with 30% less mechanical work on the body. This means that it takes less effort to lift the body up when running or jumping, compared to a natural limb using all the muscles and effort to get up. Another big disadvantage of the prosthetic is the pressure that is taken off the leg. The shock absorber in the below the knee leg is right where the knee would be on an natural leg. The job of the shock absorber is to take away the shock that comes from running, which then takes away the pressure off the leg. A example of a Paralympian is, Oscar Pistorius. He is an example of a prosthetic hook user, with double below the knee amputee. Oscar was the champion of the 400 meter relay and the 4*400 relay, even though he was a double amputee he competed in the single amputee. He was the man used for the report above, because his two prosthetic legs …show more content…
This being the case according to the Guardian, it would be unfair to the Paralympics to combine with Olympics because the paralympians need more categories than the Olympics. The categories for the Paralympics is so all the athletes have a fair advantage, and also minimize the impact of impairments.(IPC) If everyone competed in one big category then there are athletes who do not get to have equal competition, or a change to have success in an area they are good. The categories in the Paralympics are not categorized as great, good, and bad but in the way they have disabilities. For instance there are: T/F11-13, T42-47 and F31-38, etc. The T stands for track, and the F stands for field.(IPC) The numbers behind the T/F stand for their category such as single amputee, double amputee, vision impairment, or anxiety/ amnesia. If the categories in the Paralympics did not exist there would be a large number of athletes who would not get to compete. An example of this would be a vision impaired athlete competing with an amputee athlete. The categories are not so that the athletes get more of an advantage, but an equal and realistic