Forte, PedroMarinho, D.A.Morais, J.E.Morouço, PedroBarbosa, Tiago M.2019-02-012019-02-012018Forte, Pedro Miguel Gomes; Marinho, D.A.; Morais, J.E.; Morouço, P.; Barbosa, Tiago M. (2018). Estimation of mechanical power and energy cost in elite wheelchair racing by analytical procedures and numerical simulations. Computer Methods in Biomechanics and Biomedical Engineering. ISSN 1025-5842. 21:10, p. 585-5921025-5842http://hdl.handle.net/10198/18608The aim was to compare the mechanical power and energy cost of an elite wheelchair sprinter in the key-moments of the stroke cycle. The wheelchair-athlete system was 3D scanned and then computational fluid dynamics was used to estimate the drag force. Mechanical power and energy cost were derived from a set of formulae. The effective area in the catch, release and recovery phases were 0.41m(2), 0.33m(2) and 0.24m(2), respectively. Drag increased with speed and varied across the key-moments. The catch required the highest total power (range: 62.76-423.46W), followed-up by the release (61.50-407.85W) and the recovery (60.09-363.89W).engDragParalympicsKineticsPower outputSprintingjournal article10.1080/10255842.2018.1502277