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It is known that high-performance sprinters with unilateral and bilateral prosthetic lower limbs run at different speeds using different spatiotemporal strategies. Historically, these athletes still competed together in the same races, but 2018 classification rule revisions saw the separation of these two groups. This study sought to compare Paralympic sprint performance between all-comer (i.e., transfemoral and transtibial) unilateral and bilateral amputee sprinters using a large athlete sample. A retrospective analysis of race speed among Paralympic sprinters between 1996 and 2016 was conducted. In total, 584 published race results from 161 sprinters revealed that unilateral and bilateral lower-extremity amputee sprinters had significantly different race speeds in all three race finals (100 m, p value <.001; 200 m, <.001; 400 m, <.001). All-comer bilateral amputee runners ran faster than their unilateral counterparts; performance differences increased with race distance. These data support current classification criteria in amputee sprinting, which may create more equal competitive fields in the future.
Tuakli-Wosornu is with the Dept. of Chronic Disease Epidemiology, and Li and Wu, the Dept. of Biostatistics, Yale School of Public Health, New Haven, CT, USA. Li is also with Cornell Law School, Ithaca, NY, USA. Ona Ayala, Amick, and Frumberg are with the Dept. of Orthopaedics and Rehabilitation, Yale School of Medicine, New Haven, CT, USA.