Evidence map›Paper›PMID 28810928›Full record

ArticleJournal of neuroengineering and rehabilitation2017

Gait characteristics and their discriminative power in geriatric patients with and without cognitive impairment.

Lisette H J Kikkert, Nicolas Vuillerme, Jos P van Campen, Bregje A Appels, Tibor Hortobágyi, Claudine J C Lamoth

Erratum issuedAbstract read
In one paragraph

Article in Journal of neuroengineering and rehabilitation, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
–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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Lisette H J KikkertUniversity of Groningen, University Medical Centre Groningen, Center for Human Movement Sciences, A. Deusinglaan 1, 9700 AD, Groningen, The Netherlands. l.h.j.kikkert@umcg.nl.
Nicolas VuillermeUniversité Grenoble Alpes, EA AGEIS, Grenoble, France.
Jos P van CampenDepartment of Geriatric Medicine, MC Slotervaart Hospital, Amsterdam, The Netherlands.
Bregje A AppelsDepartment of Medical Psychology and Hospital Psychiatry, MC Slotervaart Hospital, Amsterdam, The Netherlands.
Tibor HortobágyiUniversity of Groningen, University Medical Centre Groningen, Center for Human Movement Sciences, A. Deusinglaan 1, 9700 AD, Groningen, The Netherlands.
Claudine J C LamothUniversity of Groningen, University Medical Centre Groningen, Center for Human Movement Sciences, A. Deusinglaan 1, 9700 AD, Groningen, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA detailed gait analysis (e.g., measures related to speed, self-affinity, stability, and variability) can help to unravel the underlying causes of gait dysfunction, and identify cognitive impairment. However, because geriatric patients present with multiple conditions that also affect gait, results from healthy old adults cannot easily be extrapolated to geriatric patients. Hence, we (1) quantified gait outcomes based on dynamical systems theory, and (2) determined their discriminative power in three groups: healthy old adults, geriatric patients with- and geriatric patients without cognitive impairment.

methodsFor the present cross-sectional study, 25 healthy old adults recruited from community (65 ± 5.5 years), and 70 geriatric patients with (n = 39) and without (n = 31) cognitive impairment from the geriatric dayclinic of the MC Slotervaart hospital in Amsterdam (80 ± 6.6 years) were included. Participants walked for 3 min during single- and dual-tasking at self-selected speed while 3D trunk accelerations were registered with an IPod touch G4. We quantified 23 gait outcomes that reflect multiple gait aspects. A multivariate model was built using Partial Least Square- Discriminant Analysis (PLS-DA) that best modelled participant group from gait outcomes.

resultsFor single-task walking, the PLS-DA model consisted of 4 Latent Variables that explained 63 and 41% of the variance in gait outcomes and group, respectively. Outcomes related to speed, regularity, predictability, and stability of trunk accelerations revealed with the highest discriminative power (VIP > 1). A high proportion of healthy old adults (96 and 93% for single- and dual-task, respectively) was correctly classified based on the gait outcomes. The discrimination of geriatric patients with and without cognitive impairment was poor, with 57% (single-task) and 64% (dual-task) of the patients misclassified.

conclusionsWhile geriatric patients vs. healthy old adults walked slower, and less regular, predictable, and stable, we found no differences in gait between geriatric patients with and without cognitive impairment. The effects of multiple comorbidities on geriatric patients' gait possibly causes a 'floor-effect', with no room for further deterioration when patients develop cognitive impairment. An accurate identification of cognitive status thus necessitates a multifactorial approach.

Indexed as

GaitAccelerationAgedAged, 80 and overBiomechanical PhenomenaCognitive DysfunctionComorbidityCross-Sectional StudiesDiscriminant AnalysisFemaleGait Disorders, NeurologicGeriatric AssessmentHealthy VolunteersHumansMaleMiddle AgedCognitive impairmentDiscriminant analysisGait dynamicsGeriatric patientsIPod touchMultivariate analysisTrunk accelerations

Identifiers

PMID28810928
PMCPMC5557524

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.