1st and 2nd step characteristics proceeding the sprint start in amputee sprinting

Gerda Strutzenberger, Adam Brazil, Hans C. Von Lieres Und Wilkau, John Daniel-Davies, Johannes Funken, Ralf Muller, Timothy Exell, Cassie Wilson, Steffen Willwacher, Wolfgang Potthast, Hermann Schwameder, Gareth Irwin

Research output: Chapter or section in a book/report/conference proceedingChapter in a published conference proceeding

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The aim of this study was to investigate I* and 2"d stance phase spatio-temporal and ground reaction force (GRF) parameters of four unilateral transtibial amputee (AMP) and nine able-bodied (AB) sprinters. Data were collected using a 3D motion capture system (Vicon, 250 Hz) and two force plates (Kistler 1000 Hz). Aside from flight time (d=0.32) and step width (d=0.60), all spatio-temporal parameters were significantly lower for the AMP compared to the AB athletes for both limbs. Peak horizontal GRF and relative impulse were significantly decreased for the AMP group, while the peak vertical GRFs were significantly decreased for the 1' (affected limb) but increased for the 2"6 step (intact limb), with the relative vertical impulse data being similar. Therefore running prostheses appear to limit the performance of AMP compared with AB sprinters.
Original languageEnglish
Title of host publicationProceedings of the 34th International Conference on Biomechanics in Sports
EditorsMichiyoshi Ae, Yasushi Enomoto, Norihisa Fujii, Hideki Takagi
Place of PublicationTsukuba, Japan
Number of pages4
Publication statusPublished - 2016


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