Evidence map›Paper›PMID 30333504›Full record

ArticleScientific reports2018

Choosing appropriate prosthetic ankle work to reduce the metabolic cost of individuals with transtibial amputation.

Kimberly A Ingraham, Hwan Choi, Emily S Gardinier, C David Remy, Deanna H Gates

Abstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Kimberly A IngrahamUniversity of Michigan, Department of Mechanical Engineering, Ann Arbor, MI, 48109, USA.
Hwan ChoiUniversity of Michigan, School of Kinesiology, Ann Arbor, MI, 48109, USA.
Emily S GardinierUniversity of Michigan, School of Kinesiology, Ann Arbor, MI, 48109, USA.
C David RemyUniversity of Michigan, Department of Mechanical Engineering, Ann Arbor, MI, 48109, USA.
Deanna H GatesUniversity of Michigan, School of Kinesiology, Ann Arbor, MI, 48109, USA. gatesd@umich.edu.ORCID http://orcid.org/0000-0002-6086-0913

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Powered ankle prostheses have been designed to reduce the energetic burden that individuals with transtibial amputation experience during ambulation. There is an open question regarding how much power the prosthesis should provide, and whether approximating biological ankle kinetics is optimal to reduce the metabolic cost of users. We tested 10 individuals with transtibial amputation walking on a treadmill wearing the BiOM powered ankle prosthesis programmed with 6 different power settings (0-100%), including a prosthetist-chosen setting, chosen to approximate biological ankle kinetics. We measured subjects' metabolic cost of transport (COT) and the BiOM's net ankle work during each condition. Across participants, power settings greater than 50% resulted in lower COT than 0% or 25%. The relationship between power setting, COT, and net ankle work varied considerably between subjects, possibly due to individual adaptation and exploitation of the BiOM's reflexive controller. For all subjects, the best tested power setting was higher than the prosthetist-chosen setting, resulting in a statistically significant and meaningful difference in COT between the best tested and prosthetist-chosen power settings. The results of this study demonstrate that individuals with transtibial amputation may benefit from prescribed prosthetic ankle push-off work that exceeds biological norms.

Indexed as

AnkleArtificial LimbsEnergy MetabolismAdultAmputation, SurgicalAnkle JointHumansMaleMiddle AgedWalkingYoung Adult

Identifiers

PMID30333504
PMCPMC6193045

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.