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Association between functional performance and executive cognitive functions in an elderly population including patients with low ankle–brachial index

Overview of attention for article published in Clinical Interventions in Aging, January 2015
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Title
Association between functional performance and executive cognitive functions in an elderly population including patients with low ankle–brachial index
Published in
Clinical Interventions in Aging, January 2015
DOI 10.2147/cia.s69270
Pubmed ID
Authors

Naomi Ferreira, Fernanda Consolim-Colombo, Paulo Januzzi Cunha, Fernando Oliveira Costa, Fernando Santos, Maria Claudia Irigoyen, Danielle Irigoyen Costa

Abstract

Peripheral arterial disease, as measured by the ankle-brachial index (ABI), is prevalent among the elderly, and is associated with functional performance, assessed by the 6-minute walk test (6MWT). Executive cognitive function (ECF) impairments are also prevalent in this population, but no existing study has investigated the association between ECF and functional performance in an elderly population including individuals with low ABI. To investigate the association between functional performance, as measured by the 6MWT, and loss in ECF, in an elderly sample including individuals with low ABI. The ABI group was formed by 26 elderly individuals with low ABI (mean ABI: 0.63±0.19), and the control group was formed by 40 elderly individuals with normal ABI (mean ABI: 1.08±0.07). We analyzed functional performance using the 6MWT, global cognition using the Mini-Mental State Examination (MMSE), and ECF using the Digit Span for assessing attention span and working memory, the Stroop Color Word Test (SCWT) for assessing information processing speed and inhibitory control/impulsivity, and the Controlled Oral Word Association Test (COWAT) for assessing semantic verbal fluency and phonemic verbal fluency. We also used a factor analysis on all of the ECF tests (global ECF). Before adjustment, the ABI group performed worse on global cognition, attention span, working memory, inhibitory control/impulsivity, semantic verbal fluency, and phonemic verbal fluency. After adjustment, the ABI group performance remained worse for working memory and semantic verbal fluency. In a simple correlation analysis including all of the subjects, the 6MWT was associated with global cognition, attention span, working memory, information processing speed, inhibitory control/impulsivity, semantic verbal fluency, and global ECF. After adjustment, all the associations remained statistically significant. This study found an independent association between functional performance and ECF in an elderly population including low ABI individuals, showing that, in elderly populations with functional impairment, ECF may also be impaired.

Twitter Demographics

The data shown below were collected from the profile of 1 tweeter who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 63 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Ireland 1 2%
Brazil 1 2%
Unknown 61 97%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 13 21%
Student > Master 9 14%
Student > Bachelor 6 10%
Researcher 6 10%
Other 3 5%
Other 6 10%
Unknown 20 32%
Readers by discipline Count As %
Psychology 13 21%
Nursing and Health Professions 9 14%
Medicine and Dentistry 8 13%
Sports and Recreations 5 8%
Neuroscience 3 5%
Other 5 8%
Unknown 20 32%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 07 May 2015.
All research outputs
#18,409,030
of 22,803,211 outputs
Outputs from Clinical Interventions in Aging
#1,437
of 1,838 outputs
Outputs of similar age
#255,815
of 353,066 outputs
Outputs of similar age from Clinical Interventions in Aging
#113
of 143 outputs
Altmetric has tracked 22,803,211 research outputs across all sources so far. This one is in the 11th percentile – i.e., 11% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,838 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 9.8. This one is in the 10th percentile – i.e., 10% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 353,066 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 16th percentile – i.e., 16% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 143 others from the same source and published within six weeks on either side of this one. This one is in the 4th percentile – i.e., 4% of its contemporaries scored the same or lower than it.