ArticleJournal of the American Heart Association2025
Association of Pre-COVID Fitness With Post-COVID Fitness and Long COVID in the Cooper Center Longitudinal Cohort Study.
Article in Journal of the American Heart Association, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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.
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.
Who cites it
1 citing paper in PubMed.
- Native T1 is independently associated with aerobic exercise capacity in long-term follow-up after mild initial COVID-19 disease (Impression COVID&Heart Study).Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic ResonanceObservational
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors.
Funding
Abstract
backgroundCross-sectional studies suggesting that SARS-CoV-2 infection and long COVID are associated with reduced cardiorespiratory fitness (CRF) lack preinfection CRF measures. The objective of this study was to determine the association of SARS-CoV-2 infection and long COVID with change in CRF.
methodsCooper Center Longitudinal Study is a cohort study based at the Cooper Clinic, a preventive medicine clinic in Dallas, Texas; we included adults ages 20 to 74 years old with CRF assessed at least twice between 2017 and 2023. COVID status was defined as "prepandemic" (2 CRF measures pre-2020), "uninfected" (no self-reported COVID), "recovered" (self-reported COVID with symptoms ≤3 months), or "long COVID" (self-reported COVID with symptoms >3 months). CRF was estimated in metabolic equivalents via a maximal modified Balke treadmill protocol.
resultsWe included 4005 participants (mean age: 51.8 years, 26.8% women), of whom, 1666 (41.6%) reported COVID and 80 (4.8% of infected) reported long COVID along with 1826 uninfected and 513 pre-pandemic controls. At baseline, those who later developed long COVID had lower CRF (10.0 metabolic equivalents, 11.1 recovered, 10.7 uninfected, 11.3 prepandemic;
conclusionsPre-COVID fitness, on average, is lower among people who developed long COVID. COVID does not greatly accelerate age-related declines in CRF, even among some with long COVID, although few included participants had severely disabling long COVID. Future longitudinal research will clarify if differences in CRF by infection status emerge over longer follow-up.
Indexed as
Identifiers
What Socratic holds
Registered trials
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 Socratic graph.