What is it about?
The systematic review identifies push-off power differences in exo-prosthetic feet in relation to walking speeds. Three ankle-foot designs (Solid Ankle Cushion Heel (SACH), Energy Storing And Return (ESAR) and powered ankle-foot units (PWR)) were included and retrieved 474 publications, 28 of which were eligible for inclusion.
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Why is it important?
Our analyses demonstrated a positive correlation between walking speed and push-off power when walking with the PWR or ESAR but not for SACH feet. Furthermore, we found that push-off power performances among the diverse types increased for higher walking speeds (> 1.21 m/s). In contrast, the differences in push-off power performance were lower at lower walking speeds. Thus, we conclude that push-off power can be a selection criterion to differentiate between ankle-foot units for prosthetic users concerning their bandwidth of walking speeds.
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This page is a summary of: Prosthetic push-off power in trans-tibial amputee level ground walking: A systematic review, PLoS ONE, November 2019, PLOS,
DOI: 10.1371/journal.pone.0225032.
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