2018
DOI: 10.1038/s41598-018-23705-8
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Abstract: Prosthetic feet are designed to store energy during early stance and then release a portion of that energy during late stance. The usefulness of providing more energy return depends on whether or not that energy transfers up the lower limb to aid in whole body propulsion. This research examined how increasing prosthetic foot energy return affected walking mechanics across various slopes. Five people with a uni-lateral transtibial amputation walked on an instrumented treadmill at 1.1 m/s for three conditions (l… Show more

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Cited by 44 publications
(40 citation statements)
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References 51 publications
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“…The methods for calculating the push-off power varied between publications (Table 1): 13 publications reported to have made a rigid foot segment (RFS) assumption; three [32,38,39] used the UD model (UD) and the method in five publications is described as segmentally-agnostic (SA) [40]. Additionally, four studies [24,34,36,41] determined push-off power directly from parameters given by the powered device or applied individual calculations (other) and three studies [30,35,42] did not specify details of push-off power calculations.…”
Section: Resultsmentioning
confidence: 99%
“…The methods for calculating the push-off power varied between publications (Table 1): 13 publications reported to have made a rigid foot segment (RFS) assumption; three [32,38,39] used the UD model (UD) and the method in five publications is described as segmentally-agnostic (SA) [40]. Additionally, four studies [24,34,36,41] determined push-off power directly from parameters given by the powered device or applied individual calculations (other) and three studies [30,35,42] did not specify details of push-off power calculations.…”
Section: Resultsmentioning
confidence: 99%
“…The prosthetic foot used for the study is a Pro-Flex®(Össur, Reykjavík, Iceland) (size 27, Category 5), a proven energy efficient ESR foot [3] with a high ankle range of motion (RoM) [30]. The model is made using ANSYS Workbench®(Canonsburg, PA, USA).…”
Section: Preparation Of Feamentioning
confidence: 99%
“…Energy storage and return (ESR) prosthetic feet serve as designated spring systems, storing energy in mid-stance of gait, that again is released for propulsion of the foot in late stance [1,2]. Increased energy return has been reported to benefit users with increased body propulsion and decreased sound limb loading [3]. Deformation of the foot allows roll-over throughout stance, imitating the response of a biological ankle.…”
Section: Introductionmentioning
confidence: 99%
“…[3] This pointed out the importance of the ankle stiffness of a prosthetic foot in restoring functions. [4,5] Consequently, evidencing ankle stiffness is essential to support clinical decision and prescription of a given foot, particularly when fitted to a transtibial prosthesis. [6] A.…”
Section: Introductionmentioning
confidence: 99%