TL;DR
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A study published in JAMA Cardiology found that people who later experienced a cardiovascular event had worse frailty, intrinsic capacity and physical health-related quality of life than matched controls as far as a decade beforehand. Differences widened in the five years before the event, but the observational findings do not establish that functional decline causes cardiovascular disease or can predict an event for an individual.
A study published online Sept. 23 in JAMA Cardiology found that older adults who later experienced a cardiovascular disease event had worse measures of frailty, intrinsic capacity and physical health-related quality of life than matched controls up to a decade beforehand. The analysis, involving 12,015 participants, found that the differences widened markedly during the five years before an event, though it does not show that functional decline causes cardiovascular disease.
Aung Zaw Zaw Phyo of Monash University in Melbourne and colleagues analyzed data from the Aspirin in Reducing Events in the Elderly cohort. The study included 2,403 people who experienced a cardiovascular event and 9,612 matched controls. Researchers examined how several measures of function changed in the years before an event.
Across the period studied, participants who later had an event showed higher frailty and lower intrinsic capacity—a measure of a person’s abilities across multiple domains—as well as poorer physical health-related quality of life. In the five years before the event, the groups’ trajectories diverged more sharply. The researchers reported faster increases in frailty and steeper declines in intrinsic capacity and physical quality-of-life scores among cases.
The study reported changes using statistical estimates: the Frailty Index increased at β = 0.78 and Fried phenotype frailty at β = 0.05, while intrinsic capacity declined at β = −0.34 and physical health-related quality of life at β = −0.55. These are study-specific model estimates, not individual risk predictions. Similar patterns appeared across the cardiovascular event categories, but the timing differed: divergence was seen at least 10 years before heart failure and fatal coronary heart disease, earlier than for myocardial infarction or stroke.
A Longer Window for Clinical Attention
The findings suggest that cardiovascular events may be preceded by a long period of worsening function, rather than appearing without any measurable changes in general health. The authors say these patterns may reflect progressive, multisystem aging and point to a prolonged window for closer clinical evaluation and early intervention.
For clinicians and researchers, tracking changes in frailty, capacity and physical well-being could add information to how health is assessed over time. But the study does not establish that these measures can identify which person will have a cardiovascular event, or that acting on a decline will prevent one. The results describe patterns across groups; they are not a screening rule or a diagnosis.
The distinction matters for readers because declining function can have many causes. The reported association is a reason for further study, not evidence that a change in mobility, stamina or quality of life necessarily signals impending heart disease. Medical decisions should be discussed with a qualified health professional.
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How Researchers Tracked Function
The report concerns a nested case-control analysis within the Aspirin in Reducing Events in the Elderly cohort. Researchers compared participants who experienced cardiovascular events with matched controls and examined measurements recorded before the events. The study’s title is “Multidimensional Aging Trajectories Preceding Cardiovascular Events,” and it was published in JAMA Cardiology in 2026.
Rather than focusing only on a single clinical measure, the analysis considered several aspects of functional aging: two measures of frailty, intrinsic capacity and physical health-related quality of life. This design allowed the team to compare how different dimensions changed over time and whether the timing of those changes varied across event types.
The Medical Xpress report, citing the study, says the analysis drew on 12,015 participants, with 2,403 cases and 9,612 controls. It does not provide detailed participant demographics, the full follow-up period or enough methodological detail to independently assess how representative the cohort is of other populations.
“Declines in functional aging markers were prominent before clinically apparent CVD.”
— Aung Zaw Zaw Phyo and colleagues, in the study
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Association, Not Individual Prediction
The results show an association between worsening functional measures and later cardiovascular events; they do not establish that functional decline causes those events. Nor does the report show whether measuring these changes in routine care would improve prediction beyond existing cardiovascular assessments or lead to better outcomes.
It is also unclear from the available report how the results might apply to people outside this cohort, including younger adults or populations with different health profiles. The study summary does not give absolute event risks, thresholds for concerning decline, or detailed estimates for each event subtype. As a result, the reported statistical changes cannot be used to calculate an individual’s likelihood of a future event.
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Further Work on Clinical Use
The study points to a need for research testing whether functional-aging measures add useful information to cardiovascular assessment and whether earlier evaluation or intervention changes outcomes. The available report does not describe a planned follow-up study, a new screening recommendation or a change to clinical guidelines.
For now, the published finding is a long-term pattern in cohort data. Any decision about symptoms, functional changes or cardiovascular risk should be made with a qualified health professional, using an individual’s full medical history and established assessments.
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Key Questions
What did the study find?
Participants who later experienced cardiovascular events had worse frailty, intrinsic capacity and physical health-related quality of life than matched controls, with differences observed up to a decade beforehand and widening in the five years before an event.
How many people were included?
The analysis included 12,015 participants: 2,403 who experienced a cardiovascular event and 9,612 matched controls.
Does functional decline cause cardiovascular disease?
The study does not establish cause and effect. It reports that functional decline was associated with later cardiovascular events, not that the decline caused them.
Can these measures predict an individual event?
The report does not provide a prediction tool, risk threshold or individual risk estimate. The findings describe differences between groups and should not be treated as a personal diagnosis or forecast.
When did the patterns appear for different events?
The report says divergence occurred at least 10 years before heart failure and fatal coronary heart disease, while differences for myocardial infarction or stroke emerged later. It does not provide more detailed timing in the summary.
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