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kloddf01

mckenzie-petersen
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kloddf01

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  1. Figure 1. Hypothesized differences between prosthetic feet with different levels of flexibility at time of opposite initial contact: (a) prosthetic foot that allows long forward progression of ground reaction force (GRF) and (b) highly flexible prosthetic foot with limited forward progression of GRF. Effective foot length (EFL) of foot A is larger than that of foot B. “Ankle” flexion (Ø) range of motion for foot B is larger than for foot A. “Drop-off” in GRF is expected on overly flexible feet (such as foot B), leading to increased initial loading on sound limb and potentially reduced sound limb step length. Klodd E, Hansen A, Fatone S, Edwards M. Effects of prosthetic foot forefoot flexibility on gait of unilateral transtibial prosthesis users. J Rehabil Res Dev. 2010; 47(9):899–910. DOI:10.1682/JRRD.2009.10.0166

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