After Cardiac Rehab Ends: What "Phase 3" Maintenance Looks Like in Rochester

A 2026 review found ongoing cardiac exercise after formal rehab ends is associated with nearly half the mortality risk of stopping. Rochester's hospital-based programs don't offer that next phase — here's what it means and what to do about it.

If you've had a heart attack, a stent, or bypass surgery, you were probably enrolled in a structured, medically supervised exercise program afterward — usually 12 weeks, covered by insurance, run by a hospital. That's called phase 2 cardiac rehabilitation, and it works. What most people aren't told clearly is what's supposed to happen next, once those 12 weeks end.

What the evidence says about staying with it

A 2026 review pooled eight studies — 60,939 patients total — comparing people who continued into ongoing, long-term cardiac exercise (known as phase 3, or maintenance) against those who returned to usual care after finishing supervised rehab [1]. The result: attending phase 3 was associated with a hazard ratio of 0.56 for all-cause mortality — roughly half the risk, compared to people who stopped [1].

Worth being precise about what that number can and can't tell you: six of the eight studies were observational, not randomized, so some of that difference likely reflects that people who keep showing up to exercise also tend to be healthier and more consistent about other things — medication, diet, not smoking — in ways a study can't fully separate from the exercise itself. Only two of the eight studies were randomized trials. That's a real limitation, and it means "cuts your risk in half" is a strong association, not proof of pure cause and effect. But an association that large, replicated across 60,939 people and multiple study designs, is not something to wave away either — it's the kind of pattern that gets researchers' attention precisely because it keeps showing up.

The part nobody tells you

Separately, research on what happens after phase 2 ends is consistent on one point: physical activity tends to decline within months of a supervised program finishing, once the structure, accountability, and clinical oversight go away [2]. That's not a personal failing — it's what happens when a program that worked well for 12 weeks simply stops, with nothing built to replace it.

Neither URMC nor Rochester Regional currently advertises an ongoing phase 3 program in the Rochester area. Phase 2 — the supervised, insurance-covered piece — is well covered locally. What comes after is, right now, mostly left to the individual to figure out alone.

What this means for you

If you finished cardiac rehab and were essentially told "keep it up" with no specific plan, that's the exact gap this research is describing. A community-based, ongoing exercise program — not a hospital program, but one built around the same population and the same medical awareness — is what "phase 3" actually means in practice. That's what RSF's cardiovascular and metabolic program is: not a replacement for phase 2, a continuation of it.

Eating to support this

The strongest evidence for diet after a cardiac event doesn't point to a restrictive plan — it points to the Mediterranean pattern specifically. A seven-year randomized trial of 1,002 patients with existing coronary heart disease compared a Mediterranean diet against a low-fat diet head to head, tracking real outcomes — heart attack, stroke, the need for a repeat procedure, cardiovascular death [3]. The Mediterranean diet group had fewer of these events over the follow-up period [3].

One honest limitation worth stating plainly: the benefit was clear in men (82% of the study) but not shown in the smaller group of women in the trial — not because the diet doesn't matter for women's heart health generally, but because this particular study wasn't large enough among women to detect a difference either way [3]. That's a gap in this specific evidence, not a reason to think the pattern doesn't apply.

In practice, the Mediterranean approach means: olive oil as the primary fat, fish and legumes in place of red meat several times a week, vegetables and whole grains at most meals, and nuts as a regular snack rather than an occasional one. It's a pattern you build over months, not a two-week reset — which is exactly why it pairs naturally with an ongoing exercise program rather than a 12-week one.

Talk to your doctor

Before starting any ongoing exercise program after a cardiac event, your cardiologist should know the plan — what kind of activity, how intense, how often — especially if it's been a while since your last stress test or cardiac evaluation. This is not a substitute for their guidance; it's exactly the kind of thing worth bringing to your next appointment by name: "what should phase 3 look like for me."

Sources: [1] Aguiar-Ricardo et al., Revista Portuguesa de Cardiologia 2026, pubmed.ncbi.nlm.nih.gov/42556784 · [2] Graham et al., Rehabilitation Process and Outcome 2020, pubmed.ncbi.nlm.nih.gov/34497468 · [3] Delgado-Lista et al. (CORDIOPREV), The Lancet 2022, pubmed.ncbi.nlm.nih.gov/35525255