Evidence map›Paper›PMID 34286166›Full record

ArticleChronic stress (Thousand Oaks, Calif.)

Chronic Pain is Associated With Reduced Sympathetic Nervous System Reactivity During Simple and Complex Walking Tasks: Potential Cerebral Mechanisms.

Taylor D Yeater, David J Clark, Lorraine Hoyos, Pedro A Valdes-Hernandez, Julio A Peraza, Kyle D Allen, Yenisel Cruz-Almeida

Open access · goldAbstract read
In one paragraph

Article in Chronic stress (Thousand Oaks, Calif.). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 9% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

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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

7 authors at 1 institution in 1 country.

Taylor D YeaterPain Research & Intervention Center of Excellence, University of Florida, University of Florida, Gainesville, FL, USA.ORCID https://orcid.org/0000-0002-9078-3066
David J ClarkDepartment of Aging and Geriatric Research, University of Florida, University of Florida, Gainesville, FL, USA.
Lorraine HoyosPain Research & Intervention Center of Excellence, University of Florida, University of Florida, Gainesville, FL, USA.
Pedro A Valdes-HernandezPain Research & Intervention Center of Excellence, University of Florida, University of Florida, Gainesville, FL, USA.
Julio A PerazaPain Research & Intervention Center of Excellence, University of Florida, University of Florida, Gainesville, FL, USA.ORCID https://orcid.org/0000-0003-3816-5903
Kyle D AllenPain Research & Intervention Center of Excellence, University of Florida, University of Florida, Gainesville, FL, USA.
Yenisel Cruz-AlmeidaPain Research & Intervention Center of Excellence, University of Florida, University of Florida, Gainesville, FL, USA.
University of Florida · US

Funding

OA Pathogenesis beyond Cartilage: A preclinical study of the sources of OA painR01AR071431 · NIAMS · UNIVERSITY OF FLORIDA · PI ALLEN, KYLE D · 2018 to 2022
$2.3M
Neuroimaging Age-Related Changes i Pain ModulationK01AG048259 · NIA · UNIVERSITY OF FLORIDA · PI CRUZ-ALMEIDA, YENISEL · 2015 to 2019
$831k
Investigating the role of osteoarthritic pain and inflammation in autonomic nervous system shifts using preclinical modelsF31AR077996 · NIAMS · UNIVERSITY OF FLORIDA · PI YEATER, TAYLOR · 2020 to 2021
$80k
NIAMS NIH HHS F31 AR077996NIAMS NIH HHS R01 AR071431NIA NIH HHS K01 AG048259
6 · The paper itself

Abstract

backgroundAutonomic dysregulation may lead to blunted sympathetic reactivity in chronic pain states. Autonomic responses are controlled by the central autonomic network (CAN). Little research has examined sympathetic reactivity and associations with brain CAN structures in the presence of chronic pain; thus, the present study aims to investigate how chronic pain influences sympathetic reactivity and associations with CAN brain region volumes.

methodsSympathetic reactivity was measured as change in skin conductance level (ΔSCL) between a resting reference period and walking periods for typical and complex walking tasks (obstacle and dual-task). Participants included 31 people with (n = 19) and without (n = 12) chronic musculoskeletal pain. Structural 3 T MRI was used to determine gray matter volume associations with ΔSCL in regions of the CAN (i.e., brainstem, amygdala, insula, and anterior cingulate cortex).

resultsΔSCL varied across walking tasks (main effect p = 0.036), with lower ΔSCL in chronic pain participants compared to controls across trials 2 and 3 under the obstacle walking condition. ΔSCL during typical walking was associated with multiple CAN gray matter volumes, including brainstem, bilateral insula, amygdala, and right caudal anterior cingulate cortex (p's < 0.05). The difference in ΔSCL from typical-to-obstacle walking were associated with volumes of the midbrain segment of the brainstem and anterior segment of the circular sulcus of the insula (p's < 0.05), with no other significant associations. The difference in ΔSCL from typical-to-dual task walking was associated with the bilateral caudal anterior cingulate cortex, and left rostral cingulate cortex (p's < 0.05).

conclusionsSympathetic reactivity is blunted during typical and complex walking tasks in persons with chronic pain. Additionally, blunted sympathetic reactivity is associated with CAN brain structure, with direction of association dependent on brain region. These results support the idea that chronic pain may negatively impact typical autonomic responses needed for walking performance via its potential impact on the brain.

Indexed as

central autonomic networkchronic painmobilityneuroimagingsympathetic nervous system

Identifiers

PMID34286166
PMCPMC8267022
OpenAlexW3182115667

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.