Evidence map›Paper›PMID 32139095›Full record

ArticleJournal of biomechanics2020

How healthy older adults regulate lateral foot placement while walking in laterally destabilizing environments.

Meghan E Kazanski, Joseph P Cusumano, Jonathan B Dingwell

Open access · greenAbstract read
In one paragraph

Article in Journal of biomechanics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
7.8field-weighted citation impact, top 3% 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

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

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Systematic review of candidate prognostic factors for falling in older adults identified from motion analysis of challenging walking tasks.European review of aging and physical activity : official journal of the European Group for Research into Elderly and Physical Activity · 2023
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. 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

3 authors at 1 institution in 1 country.

Meghan E KazanskiDepartment of Kinesiology & Health Education, University of Texas, Austin, TX 78712, USA; Department of Kinesiology, Pennsylvania State University, University Park, PA 16802, USA.
Joseph P CusumanoDepartment of Engineering Science & Mechanics, Pennsylvania State University, University Park, PA 16802, USA.
Jonathan B DingwellDepartment of Kinesiology & Health Education, University of Texas, Austin, TX 78712, USA; Department of Kinesiology, Pennsylvania State University, University Park, PA 16802, USA. Electronic address: http://biomechanics.psu.edu/.
Pennsylvania State University · US

Funding

Improving Lateral Stepping Control to Reduce Falls in the ElderlyR01AG049735 · NIA · UNIVERSITY OF TEXAS AT AUSTIN · PI DINGWELL, JONATHAN B · 2016 to 2020
$1.9M
NIA NIH HHS R01 AG049735
6 · The paper itself

Abstract

Gait variability is generally associated with falls, but specific connections remain disputed. To reduce falls, we must first understand how older adults maintain lateral balance while walking, particularly when their stability is challenged. We recently developed computational models of lateral stepping, based on Goal Equivalent Manifolds, that separate effects of step-to-step regulation from variability. These show walking humans seek to strongly maintain step width, but also lateral position on their path. Here, 17 healthy older (ages 60+) and 17 healthy young (ages 18-31) adults walked in a virtual environment with no perturbations and with laterally destabilizing perturbations of either the visual field or treadmill platform. For step-to-step time series of step widths and lateral positions, we computed variability, statistical persistence and how much participants directly corrected deviations at each step. All participants exhibited significantly increased variability, decreased persistence and tighter direct control when perturbed. Simulations from our stepping regulation models indicate people responded to the increased variability imposed by these perturbations by either maintaining or tightening control of both step width and lateral position. Thus, while people strive to maintain lateral balance, they also actively strive to stay on their path. Healthy older participants exhibited slightly increased variability, but no differences from young in stepping regulation and no evidence of greater reliance on visual feedback, even when subjected to substantially destabilizing perturbations. Thus, age alone need not degrade lateral stepping control. This may help explain why directly connecting gait variability to fall risk has proven difficult.

Indexed as

Postural BalanceWalkingAccidental FallsAdolescentAdultAgedFeedback, SensoryFootGaitHumansMiddle AgedYoung AdultFoot placementLateral balanceMulti-objective controlOlder adultsStepping

Identifiers

PMID32139095
PMCPMC7188576
OpenAlexW3008884670

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.