CClinicalTrials.gg
Status unknownNCT05118711COR-PHYSUpdated Feb 10, 2023

Sequelae of COVID-19 With Focus on Exercise Capacity and Underlying Mechanisms

An observational study in Patients Post-COVID-19 and Controls, sponsored by Arno Schmidt-Trucksäss. Status unknown at 1 site in Switzerland. Open to participants aged 40 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-02-10.

Sponsored by Arno Schmidt-Trucksäss · Observational

The sponsor has not verified this record recently (last verified Feb 2023), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Cross-sectional
Enrollment
128
Ages
40 Years and older
Sex
All
01

Study summary

The project is designed as a cross-sectional study and aims to examine long-term consequences of coronavirus disease 2019 (COVID-19) for selected bio-behavioural parameters while taking the disease course severity into account.

02

Conditions studied

  • Patients Post-COVID-19
  • Controls

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Keywords

  • SARS-CoV-2
  • Coronavirus
  • Sequelae
  • Exercise intolerance
  • Cardiopulmonary exercise testing
03

In context

COVID-19

7,640 studies on the registry are indexed under COVID-19; 488 are open to participants now.

This study's planned enrollment of 128 is below the median of 261 across 3,136 observational studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

Arno Schmidt-Trucksäss is the lead sponsor of 4 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
40 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Previously hospitalised patients recovering from COVID-19 and fully vaccinated controls with no history of symptomatic COVID-19.

Recruitment of patients will be done via the University Hospital of Basel, Switzerland, the Clinic Barmelweid, Barmelweid, Switzerland, and Cantonal Hospital Olten, Olten, Switzerland. Participants for the control group will be recruited prospectively through unaddressed letters distributed in the Basel-Stadt area, newspaper, internet-based media, and word-of-mouth. Recruitment will continue until the number of valid datasets corresponds to the calculated sample size.

Inclusion criteria

  • tested positive for SARS-CoV-2 using antigen- or PCR tests within the last 18 months
  • previous hospitalisation due to COVID-19
  • fully vaccinated (only for controls)

Exclusion criteria

Exclusion Criteria:

  • inability to follow the study procedures (e.g. due to language barriers, psychological disorders, dementia, etc.),
  • known pregnancy or lactating women,
  • presence of any contraindications for exercising until maximum exhaustion, including insufficient blood pressure control (systolic >170 mmHg, diastolic >100 mmHg), ongoing cancer treatment, unstable angina pectoris, uncontrolled bradyarrhythmia or tachyarrhythmia, severe uncorrected valvular heart disease, clinically relevant acute infection, any form of musculoskeletal injury,
  • participating in any interventional clinical trial within the last four weeks,
  • previous participation in the current study
  • history of symptomatic COVID-19 (only for controls)
05

Study design

Observational model
Cohort
Time perspective
Cross-sectional
Enrollment
128 participants (estimated)
Patient registry
No
Biospecimen retention
Samples without dna

Groups and cohorts

  • COVID-19 (18 months post-infection)

    Individuals with a positive Severe Acute Respiratory Syndrome-Coronavirus 2 (SARS-CoV-2) antigen-/polymerase chain reaction (PCR) test within the last 18 months that required hospitalisation. Symptoms typically worsened within a period of 5 to 10 days leading to e.g., prolonged fever, feeling of sickness and/or shortness of breath. This also includes individuals hospitalised in an intensive care ward. Individuals need to be hospitalised due to COVID-19 and not only with COVID-19.

    Diagnostic Test: Cardiorespiratory fitness · Diagnostic Test: Lung function · Diagnostic Test: Muscular strength and balance tests · Diagnostic Test: Micro- and macrovascular endothelial function and cardiac function · Diagnostic Test: Blood sampling and analysis · Diagnostic Test: Physical activity · Diagnostic Test: Questionnaires · Diagnostic Test: Body composition

  • Control group

    Age-, sex-, and comorbidity-matched (frequency matching), fully vaccinated individuals with no history of symptomatic SARS-CoV-2 infection.

    Diagnostic Test: Cardiorespiratory fitness · Diagnostic Test: Lung function · Diagnostic Test: Muscular strength and balance tests · Diagnostic Test: Micro- and macrovascular endothelial function and cardiac function · Diagnostic Test: Blood sampling and analysis · Diagnostic Test: Physical activity · Diagnostic Test: Questionnaires · Diagnostic Test: Body composition

Interventions

  • Diagnostic testCardiorespiratory fitness

    Cardiopulmonary exercise testing

  • Diagnostic testLung function

    Body plethysmography

  • Diagnostic testMuscular strength and balance tests

    Handgrip strength test, mid-thigh pull test and standing balance test in static tandem stance

  • Diagnostic testMicro- and macrovascular endothelial function and cardiac function

    Measurement of flow-mediated dilation, static and dynamic retinal vessel analysis, echocardiography

  • Diagnostic testBlood sampling and analysis

    Blood sampling by venepuncture

  • Diagnostic testPhysical activity

    Physical activity surveillance using accelerometers

  • Diagnostic testQuestionnaires

    Global physical activity questionnaire (GPAQ), short-form 8 health survey (SF-8), barriers to physical activity, fatigue assessment scale (FAS), modified medical research council dyspnea scale (mMRC), depression, anxiety, and stress scale (DASS21), post-COVID-19 syndrome symptoms

  • Diagnostic testBody composition

    Dual-energy x-ray absorptiometry (DXA)

06

What researchers measure

Primary outcomes

  1. Cardiorespiratory fitness (as % of predicted V̇O2max)

    Measured during cardiopulmonary exercise testing on a cycle ergometer.

    Time frame: 1.5 hours after inclusion in study

Secondary outcomes

  1. Forced expiratory volume in 1 s (as % of predicted)

    Measured during bodyplethysmography.

    Time frame: 1.5 hours after inclusion in study

  2. Forced vital capacity (as % of predicted)

    Measured during bodyplethysmography.

    Time frame: 1.5 hours after inclusion in study

  3. Total lung capacity (as % of predicted)

    Measured during bodyplethysmography.

    Time frame: 1.5 hours after inclusion in study

  4. Diffusion capacity of the lungs (as % of predicted)

    Measured during bodyplethysmography.

    Time frame: 1.5 hours after inclusion in study

  5. Muscle oxygenation at peak exercise (in %)

    Measured using near-infrared spectroscopy during cardiopulmonary exercise testing on a cycle ergometer.

    Time frame: 1.5 hours after inclusion in study

  6. Cardiac output at peak exercise (in mL)

    Measured non-invasive using the PhysioFlow device during cardiopulmonary exercise testing on a cycle ergometer.

    Time frame: 1.5 hours after inclusion in study

  7. Handgrip strength (in N)

    Measured by a handheld dynamometer.

    Time frame: 1 hour after inclusion in study

  8. Handgrip rate of force development (in N/s)

    Measured by a handheld dynamometer.

    Time frame: 1 hour after inclusion in study

  9. Macrovascular flow-mediated dilation at rest (in %)

    Measured by ultrasound.

    Time frame: 0.5 hours after inclusion in study

  10. Microvascular flow-mediated dilation at rest (in %)

    Measured by retinal vessel analysis.

    Time frame: 2 to 14 days after inclusion in study

  11. Fatigue Assessment Scale (FAS) score

    Scores range from 5 to 50 with higher scores indicating more severe fatigue.

    Time frame: 2 to 14 days after inclusion in study

  12. Score of depression, anxiety, and stress questionnaire (DASS21)

    Scores range from 0 to 63 with higher scores indicating worse mental health.

    Time frame: 2 to 14 days after inclusion in study

  13. Health distance

    The statistical (Mahalanobis) distance (health distance) is a composite measure of various health biomarkers

    Time frame: Calculated during statistical analysis

  14. Cerebral oxygenation at peak exercise (in %)

    Measured using functional near-infrared spectroscopy during cardiopulmonary exercise testing on a cycle ergometer.

    Time frame: 1.5 hours after inclusion in study

07

Study locations

1 of 1 sites recruiting
  • Division of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel
    Basel, BS 4052, Switzerland
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 10, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05118711
Lead sponsor
Arno Schmidt-Trucksäss
Responsible party
Arno Schmidt-Trucksäss (Sponsor-Investigator and Head of Rehabilitative and Regenerative Sports Medicine, Department of Sport, Exercise and Health, University of Basel) — Sponsor-investigator
First posted
Nov 12, 2021
Start date
Jan 3, 2023
Primary completion
Mar 2024 (estimated)
Completion
Mar 2024 (estimated)
Last update
Feb 10, 2023

Study contacts

Arno Schmidt-Trucksäss, Prof.
Contact
arno.schmidt-trucksaess@unibas.ch
+41 61 207 47 40
Arno Schmidt-Trucksäss, Prof.
principal investigator · Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Feb 2023. You cannot join it, but the record below documents what was studied.

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