Toe clearance when walking in people with unilateral transtibial amputation: Effects of passive hydraulic ankle
dc.contributor.author | Johnson, Louise | * |
dc.contributor.author | De Asha, Alan R. | * |
dc.contributor.author | Munjal, R. | * |
dc.contributor.author | Kulkarni, J. | * |
dc.contributor.author | Buckley, John | * |
dc.date.accessioned | 2016-04-27T12:01:37Z | |
dc.date.available | 2016-04-27T12:01:37Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | Johnson L, De Asha AR, Munjal R et al (2014) Toe clearance when walking in people with unilateral transtibial amputation: Effects of passive hydraulic ankle. Journal of Rehabilitation Research and Development. 51(3): 429-438. | |
dc.identifier.uri | http://hdl.handle.net/10454/8200 | |
dc.description | Yes | |
dc.description.abstract | Most clinically available prosthetic feet have a rigid attachment or incorporate an “ankle” device allowing elastic articulation during stance, with the foot returning to a “neutral” position at toe-off. We investigated whether using a foot with a hydraulically controlled articulating ankle that allows the foot to be relatively dorsiflexed at toe-off and throughout swing would increase minimum toe clearance (MTC). Twenty-one people with unilateral transtibial amputation completed overground walking trials using their habitual prosthetic foot with rigid or elastic articulating attachment and a foot with a hydraulic ankle attachment (hyA-F). MTC and other kinematic variables were assessed across multiple trials. When using the hyA-F, mean MTC increased on both limbs (p= 0.03). On the prosthetic limb this was partly due to the device being in its fully dorsiflexed position at toe-off, which reduced the “toes down” foot angle throughout swing (p = 0.01). Walking speed also increased when using the hyA-F (p = 0.001) and was associated with greater swing-limb hip flexion on the prosthetic side (p = 0.04), which may have contributed to the increase in mean MTC. Variability in MTC increased on the prosthetic side when using the hyA-F (p = 0.03), but this did not increase risk of tripping. | |
dc.language.iso | en | en |
dc.rights | © 2014 The Authors. Published Open Access by the Rehabilitation Research and Development Service, Department of Veterans Affairs. Reproduced in accordance with the publisher's self-archiving policy. | |
dc.subject | Dorsiflexion | |
dc.subject | Gait | |
dc.subject | Hydraulic ankle | |
dc.subject | Prosthesis | |
dc.subject | Toe clearance | |
dc.subject | Transtibial | |
dc.subject | Tripping | |
dc.subject | Unilateral | |
dc.subject | Walking speed | |
dc.subject | Amputation | |
dc.title | Toe clearance when walking in people with unilateral transtibial amputation: Effects of passive hydraulic ankle | |
dc.status.refereed | Yes | |
dc.type | Article | |
dc.type.version | Published version | |
dc.identifier.doi | https://doi.org/10.1682/JRRD.2013.05.0126 | |
dc.rights.license | Unspecified | |
refterms.dateFOA | 2018-07-25T13:58:27Z | |
dc.openaccess.status | openAccess |