Evidence map›Paper›PMID 30266784›Full record

ArticleThe Journal of experimental biology2018

Biomechanical effects of augmented ankle power output during human walking.

Sarah N Fickey, Michael G Browne, Jason R Franz

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 16% of its field
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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

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  13. Habitually wearing high heels may improve user walking economy in any footwear.Journal of applied physiology (Bethesda, Md. : 1985) · 2024
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  19. Muscle metabolic energy costs while modifying propulsive force generation during walking.Computer methods in biomechanics and biomedical engineering · 2021
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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

3 authors at 1 institution in 1 country.

Sarah N FickeyJoint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, NC 27599, USA.
Michael G BrowneJoint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, NC 27599, USA.
Jason R FranzJoint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, NC 27599, USA jrfranz@email.unc.edu.ORCID 0000-0001-9523-9708
University of North Carolina at Chapel Hill · US

Funding

Influence of Age-Related Changes in Tendon on Motor PerformanceR01AG051748 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI BLEMKER, SILVIA SALINAS, THELEN, DARRYL G · 2016 to 2020
$1.8M
NIA NIH HHS R01 AG051748
6 · The paper itself

Abstract

The plantarflexor muscles are critical for forward propulsion and leg swing initiation during the push-off phase of walking, serving to modulate step length and walking speed. However, reduced ankle power output is common in aging and gait pathology, and is considered a root biomechanical cause of compensatory increases in hip power generation and increased metabolic energy cost. There is a critical need for mechanistic insight into the precise influence of ankle power output on patterns of mechanical power generation at the individual joint and limb levels during walking. We also posit that rehabilitative approaches to improve locomotor patterns should consider more direct means to elicit favorable changes in ankle power output. Thus, here we used real-time inverse dynamics in a visual biofeedback paradigm to test young adults' ability to modulate ankle power output during preferred speed treadmill walking, and the effects thereof on gait kinematics and kinetics. Subjects successfully modulated peak ankle power in response to biofeedback targets designed to elicit up to ±20% of normal walking values. Increasing ankle power output alleviated mechanical power demands at the hip and increased trailing limb positive work, propulsive ground reaction forces and step lengths. Decreasing ankle power had the opposite effects. We conclude that ankle power generation systematically influences the workload placed on more proximal leg muscles, trailing leg mechanical output and step length. Our findings also provide a promising benchmark for the application of biofeedback to restore ankle power in individuals with deficits thereof due to aging and gait pathology.

Indexed as

Biofeedback, PsychologyVisual PerceptionAdultAnkleAnkle JointBiomechanical PhenomenaFemaleGaitHumansKineticsMaleWalkingYoung AdultInverse dynamicsJoint workMetabolic costPush-offWalking

Identifiers

PMID30266784
PMCPMC6262765
OpenAlexW2893694661

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.