Evidence map›Paper›PMID 30367447›Full record

ArticleAging clinical and experimental research2019

Optic flow improves step width and length in older adults while performing dual task.

Taylor Leeder, Farahnaz Fallahtafti, Molly Schieber, Sara A Myers, Julie Blaskewicz Boron, Jennifer M Yentes

Open access · greenAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Aging clinical and experimental research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

5 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Sensory Input Modulates Microsaccades during Heading Perception.International journal of environmental research and public health · 2021
    Article
  3. Task specificity impacts dual-task interference in older adults.Aging clinical and experimental research · 2021
    Article
  4. Article
  5. Article
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

6 authors at 1 institution in 1 country.

Taylor LeederDepartment of Biomechanics, University of Nebraska at Omaha, 6160 University Drive, Omaha, NE, 68182-0860, USA.
Farahnaz FallahtaftiDepartment of Biomechanics, University of Nebraska at Omaha, 6160 University Drive, Omaha, NE, 68182-0860, USA.
Molly SchieberDepartment of Biomechanics, University of Nebraska at Omaha, 6160 University Drive, Omaha, NE, 68182-0860, USA.
Sara A MyersDepartment of Biomechanics, University of Nebraska at Omaha, 6160 University Drive, Omaha, NE, 68182-0860, USA.
Julie Blaskewicz BoronDepartment of Gerontology, University of Nebraska at Omaha, 6001 Dodge Street, Omaha, NE, 68182-0202, USA.
Jennifer M YentesDepartment of Biomechanics, University of Nebraska at Omaha, 6160 University Drive, Omaha, NE, 68182-0860, USA. jyentes@gmail.com.ORCID http://orcid.org/0000-0001-6550-7759
University of Nebraska at Omaha · US

Funding

Visual control of locomotion in people with Parkinsons diseaseP20GM109090 · NIGMS · UNIVERSITY OF NEBRASKA OMAHA · PI KNARR, BRIAN ANDREW · 2014 to 2023
$20.5M
Improving mobility in peripheral artery disease using an ankle foot orthosisR01HD090333 · NICHD · UNIVERSITY OF NEBRASKA OMAHA · PI MYERS, SARA A · 2016 to 2020
$2.1M
Foundation for the National Institutes of Health P20 GM109090Foundation for the National Institutes of Health R01 HD090333NHLBI NIH HHS L30 HL129255NICHD NIH HHS R01 HD090333NIGMS NIH HHS P20 GM109090
6 · The paper itself

Abstract

backgroundDual-task paradigms are used to investigate gait and cognitive declines in older adults (OA). Optic-flow is a virtual reality environment where the scene flows past the subject while walking on a treadmill, mimicking real-life locomotion.

aimsTo investigate cost of environment (no optic-flow v. optic-flow) while completing single- and dual-task walking and dual-task costs (DTC; single- v. dual-task) in optic-flow and no optic-flow environments.

methodsTwenty OA and seven younger adults (YA) walked on a self-paced treadmill in 3-min segments per task and both environments. Five task conditions included: no task, semantic fluency (category), phonemic fluency (letters), word reading, and serial-subtraction.

resultsOAs had a benefit of optic-flow compared to no optic-flow for step width (p = 0.015) and step length (p = 0.045) during letters compared to the YA. During letters, OA experienced improvement in step width DTC; whereas YA had a decrement in step width DTC from no optic-flow to optic-flow (p = 0.038). During serial-subtraction, OA had less step width DTC when compared to YA in both environments (p = 0.02). DISCUSSION: During letters, step width and step length improved in OA while walking in optic-flow. Also, step width DTC differed between the two groups. Sensory information from optic-flow appears to benefit OA. Letters relies more on verbal ability and word knowledge, which are preserved in aging. However, YA use a complex speech style during dual tasking, searching for complex words and an increased speed of speech.

conclusionsOA can benefit from optic-flow by improving spatial gait parameters, specifically, step width, during dual-task walking.

Indexed as

GaitOptic FlowAdultAgedAged, 80 and overExercise TestFemaleHumansLocomotionMaleSpeechYoung AdultDual task costEnvironmentGaitSpatiotemporalVirtual reality

Identifiers

PMID30367447
PMCPMC6486470
OpenAlexW2898510154

What OpenQuestion holds

Textmetadata
LicenceTDM
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.