SOME NUMBERS

“A double amputee requires 300% more oxygen consumption just to stand up than someone with their own legs,” explains the physiotherapist, Kate Sherman, “so it is really hard for them, and the less residual leg that you have left, the harder the prosthetic limbs are to control.”
http://www.legion-magazine.co.uk/features/welfare/matters-of-life-and-limb/

versus



A scientific study revealed that Pistorius, nicknamed "Blade Runner", used 25% less energy than able-bodied runners to run at the same speed.

The 21-year-old South African said last week he would appeal against any ban.
http://news.bbc.co.uk/sport1/hi/olympics/athletics/7141302.stm