Does Dynamic Response Influence Stability and Mobility?
In the final study, comparisons were sought between the SAFE II foot and the Flex-Walk, representative of Medicare’s billing categories L-5972 and L-5981, respectively.6 Researchers recruited 11 subjects for this analysisa relatively young cohort with traumatic unilateral transtibial amputations who were all using one of the two studied feet prior to the study. Subjects were randomly placed into two groups to determine which foot they would test with first. Following the first test session, the subjects were fitted with the alternate foot and given a minimum of 30 minutes to become, as the authors describe, “familiar and comfortable with the properties of each prosthetic foot.” During this brief acclimation period, subjects were encouraged to engage in a variety of tasks including walking on even and uneven terrain, turning, stair climbing, and, if possible, running. Each testing session included an evaluation of a number of spatiotemporal and kinetic variables, the majority of which w
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