Evidence map›Paper›PMID 33719728›Full record

Trial reportNeurorehabilitation and neural repair2021

Dual-Task Effects During a Motor-Cognitive Task in Parkinson's Disease: Patterns of Prioritization and the Influence of Cognitive Status.

Hanna Johansson, Urban Ekman, Linda Rennie, Daniel S Peterson, Breiffni Leavy, Erika Franzén

Abstract readClinical Trial
In one paragraph

Trial report in Neurorehabilitation and neural repair, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 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

36 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  7. Discriminating vascular parkinsonism from early-stage postural instability gait difficulty subtype dominant Parkinson's disease: a dual-task gait analysis using wearable sensors.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
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  16. Impaired dual-task gait in Parkinson's disease is associated with brain morphology changes.Journal of neural transmission (Vienna, Austria : 1996) · 2024
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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

6 authors.

Hanna JohanssonKarolinska Institutet, Stockholm, Sweden.ORCID 0000-0003-3360-5447
Urban EkmanKarolinska Institutet, Stockholm, Sweden.
Linda RennieSunnaas Rehabilitation Hospital, Nesodden, Norway.
Daniel S PetersonArizona State University, Phoenix, AZ, USA.ORCID 0000-0002-4639-6544
Breiffni LeavyKarolinska Institutet, Stockholm, Sweden.
Erika FranzénKarolinska Institutet, Stockholm, Sweden.ORCID 0000-0001-5520-544X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

People with Parkinson's disease (PD) experience greater difficulties during dual task (DT) walking compared to healthy controls, but factors explaining the variance in DT costs remain largely unknown. Additionally, as cognitive impairments are common in PD it is important to understand whether cognitive status influences the strategies used during DT paradigms. The study aimed to (1) explore DT costs on gait and cognition during DT walking, (2) investigate factors associated with DT costs, and (3) to investigate to what extent patterns of DT costs and prioritization differed according to cognitive status. A total of 93 people with Parkinson's disease were examined when walking in single and DT conditions. Information regarding demographics, PD severity, mobility, and cognitive and affective symptoms was collected, and an extensive neuropsychological test battery was used to classify whether participants had mild cognitive impairment (PD MCI) or not (PD non-MCI). Dual task costs were observed across all gait domains except asymmetry. Cognitive status was associated with DT costs on both gait and cognition. Nonmotor experiences of daily living were further associated with DT cost on cognition, and TUG-cog associated with DT cost on gait. People with PD MCI had larger DT costs on gait than PD non-MCI. Strategies differed according to cognitive status, whereby PD MCI used a posture-second strategy, and PD non-MCI used a posture-first strategy. Once verified in future studies, these results can inform clinicians and researchers when tailoring DT training paradigms to the specific characteristics of people with PD.

Indexed as

AgedCognitive DysfunctionExecutive FunctionFemaleGait Disorders, NeurologicHumansMaleMiddle AgedParkinson DiseasePsychomotor Performancecognitiongaitmultitasking behaviorParkinson disease

Identifiers

PMID33719728
PMCPMC8073879

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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.