NCT06850350

Brief Summary

Growing evidence indicates that many people who have chronic post-acute sequelae of SARS-CoV-2 infection (PASC) will experience ongoing neurological and musculoskeletal impairment that can affect gait and balance. Identifying the factors contributing to these impairments and how they influence functional mobility is the first step towards creating effective evaluation and treatment protocols. In this study the investigators will examine cognition, vision, proprioception, muscle strength, gait and balance in persons with and without PASC to understand how PASC may impact functional mobility through a cognitive-sensorimotor lens. Gait and balance will be studied in environments that stress cognitive and sensory abilities. Study outcomes will be critical for the development of evidence-based Veteran Health Administration diagnostic and standard-of-care protocols to address gait and balance dysfunction in Veterans with PASC for restoring their functional mobility and independence.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
136

participants targeted

Target at P50-P75 for all trials

Timeline
57mo left

Started Apr 2026

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress2%
Apr 2026Dec 2030

First Submitted

Initial submission to the registry

February 26, 2025

Completed
1 day until next milestone

First Posted

Study publicly available on registry

February 27, 2025

Completed
1.1 years until next milestone

Study Start

First participant enrolled

April 1, 2026

Completed
4.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2030

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2030

Last Updated

April 14, 2026

Status Verified

April 1, 2026

Enrollment Period

4.8 years

First QC Date

February 26, 2025

Last Update Submit

April 13, 2026

Conditions

Outcome Measures

Primary Outcomes (6)

  • NIH Toolbox Cognition Battery

    The NIH Toolbox Cognition Battery to assess working memory and attention cognitive function. Working memory and attention cognitive function are quantified through performance on the List Sorting Working Memory Test and Flanker Inhibitory Control and Attention Test, respectively, administered via tablet. Raw scores from these measures can be converted to normally distributed standard (scaled) scores adjusted for age, education, sex, and/or race/ethnicity (T-Scores), as appropriate. A higher score means better performance.

    During single session of two hours

  • Joint position sense proprioception

    Joint position sense is measured by participants' ability to accurately extend the knee joint to a target reference angle. Participants will be seated and perform nine trials where they have to replicate guided knee joint angle position of 30, 45, or 60°. The difference between guided and replicated position is recorded as the angle error, where greater error means worse proprioception.

    During single session of two hours

  • King-Devick Test

    The King-Devick Test assesses ocular-motor function. Participants are asked to accurately and rapidly read rows of single-digit numbers displayed on a tablet. The test score is calculated as the total time required to read three test cards (each test card is approximately a full page of numbers), where faster is better.

    During single session of two hours

  • Maximum voluntary muscle strength

    Participants will be seated and isokinetic maximum voluntary contraction is measured with a dynamometer, normalized by participant height and body mass (N-m/kg-m). Greater values mean better strength.

    During single session of two hours

  • Dual task gait cost

    Participants will walk at their self-selected speed for 10 laps back and forth along a 10-m straight walkway with wide turns, once without a cognitive task (single task) and once with a cognitive task that stresses working memory (dual task). Difference in gait speed (m/s) is the dual task gait cost, in which higher values mean worse performance.

    During single session of two hours

  • Modified Clinical Test of Sensory Interaction on Balance

    Participants stand on a force plate and perform four balance tasks for which participants are instructed to maintain quiet upright balance: 1) eyes open on a firm surface while focusing straight ahead (access to all three modalities), 2) eyes closed on a firm surface (compromised visual), 3) eyes open on a foam surface while focusing straight ahead (compromised somatosensory), and 4) eyes closed on a foam surface (compromised visual and somatosensory). Total CoP distance travelled (mm) of the four specific balance tasks is measured, with greater distance meaning worse performance.

    During single session of two hours

Secondary Outcomes (1)

  • Mini-Balance Evaluation Systems Test

    During single session of two hours

Study Arms (2)

Control

Adults who previously contracted Covid-19 but do not have Long-COVID.

Experimental

Adults who previously contracted Covid-19 and have Long-COVID.

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Adults who previously contracted Covid-19 and do or do not have Long-COVID.

You may qualify if:

  • Older than 18 years of age
  • Positive PCR or Rapid COVID-19 test in the past
  • Onset of COVID-19 illness greater than 3 months prior to their participation in the study
  • Self-reported ability to walk 10 meters with or without external assistance prior to COVID-19 illness

You may not qualify if:

  • Presence of severe cardiovascular and pulmonary disease and/or neurological and musculoskeletal disorders unrelated to COVID-19 (e.g., amputation, stroke, spinal cord injury)
  • Cognitive impairments precluding ability to provide informed consent.
  • Severe acute COVID-19 infection requiring hospitalization or diagnosed post-intensive care syndrome.
  • Presence of musculoskeletal, inflammatory, or neurological conditions mimicking Long COVID-19 symptoms (e.g., concussion within last 5 years, Chronic fibromyalgia, Myofascial pain syndrome, etc.)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Jesse Brown VA Medical Center, Chicago, IL

Chicago, Illinois, 60612, United States

RECRUITING

MeSH Terms

Conditions

Post-Acute COVID-19 Syndrome

Condition Hierarchy (Ancestors)

COVID-19Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract DiseasesPost-Infectious DisordersChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Matthew J. Major, PhD

    Jesse Brown VA Medical Center, Chicago, IL

    PRINCIPAL INVESTIGATOR
  • Keith Edward Gordon, PhD

    Edward Hines Jr. VA Hospital, Hines, IL

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Matthew J Major, PhD

CONTACT

Keith E Gordon, PhD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 26, 2025

First Posted

February 27, 2025

Study Start

April 1, 2026

Primary Completion (Estimated)

December 31, 2030

Study Completion (Estimated)

December 31, 2030

Last Updated

April 14, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Locations