 His complaint was supported by single-leg runners including Jerome Singleton and Jack Swift, who called for the T43 double blade and T44 single blade classes to be separated in future events, as single blade runners were unable to adjust the height of the prostheses, and must always match the length of their biological leg with a running blade.The improvement in running time and the wide broadcast of the race results provided a public demonstration of how the blade length affects performance.Pistorius' stride length was actually 9% longer (2.2 m vs 2.0 m), but Oliveira took more strides (99 vs 92).