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Figure 1 . Seat position matrix. 1 = position 1, 2 = position 2, 3 = position 3, and 4 = position 4.
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Figure 1. Seat position matrix. 1 = position 1, 2 = position 2, 3 = position 3, and 4 = position 4. Freixes O, Fernández SA, Gatti MA, Crespo MJ, Olmos LE, Rubel IF. Wheelchair axle position effect on start-up propulsion performance of persons with tetraplegia. J Rehabil Res Dev. 2010;47(7):661–68. DOI:10.1682/JRRD.2009.09.0146