Study note — Lee et al. Circulation 2022 (long-term MPA/VPA vs mortality)
Shelf: Siim-cited (underlying landmark in Siim’s Zone 2 (R) = O’Keefe 2023)
Full-text access: Yes — open on PMC (HTML full text / NIHMS).
Fetched 2026-09-18 from https://pmc.ncbi.nlm.nih.gov/articles/PMC9378548/
doi:10.1161/CIRCULATIONAHA.121.058162 · PMID 35876019
Labels: [Paper] · [Inference]
Citation
Lee DH, Rezende LFM, Joh HK, Keum N, Ferrari G, Rey-Lopez JP, Rimm EB, Tabung FK, Giovannucci EL.
Long-term leisure-time physical activity intensity and all-cause and cause-specific mortality: a prospective cohort of US adults.
Circulation. 2022;146(7):523–534.
doi:10.1161/CIRCULATIONAHA.121.058162 · PMC PMC9378548
Methods [Paper]
- Design: Prospective cohort analysis of Nurses’ Health Study + Health Professionals Follow-up Study.
- Sample: 116,221 adults; repeated leisure-time PA questionnaires (up to 15 assessments over decades).
- Exposure: Long-term average moderate (MPA) and vigorous (VPA) leisure-time minutes/week; analyses mutually adjusted for MPA and VPA.
- Outcomes: All-cause, CVD, and non-CVD mortality (47,596 deaths over ~30 years in the published abstract framing).
- Analysis: Cox models; categorical dose bands; restricted cubic splines.
Key results (numbers) [Paper]
Mutually adjusted vs no VPA / low MPA (selected published contrasts):
- Meeting VPA guideline band 75–149 min/week vs no VPA: all-cause HR 0.81 (0.76–0.87) (~19% lower); CVD HR 0.69 (0.60–0.78); non-CVD HR 0.85 (0.79–0.92).
- Meeting MPA guideline 150–299 min/week: ~19–25% lower all-cause / CVD / non-CVD mortality (paper’s summary range).
- 2–4× guideline minimum: further modest gains — VPA 150–299 → ~2–4% additional vs guideline meeters; MPA 300–599 → ~3–13% additional (paper summary).
- Higher still: VPA ≥300 or MPA ≥600 did not clearly show further lower mortality (nor clear harm) in mutually adjusted models.
- Nearly maximum association: ~150–300 min/week long-term VPA or ~300–600 min/week long-term MPA (or equivalent combination).
- Spline narrative: MPA inverse association continued to strengthen across assessed range; VPA inverse association leveled in the higher range.
- Joint analyses: extra VPA helped when MPA <300 min/week; among those with MPA ≥300, extra VPA did not clearly add mortality benefit beyond MPA.
Limitations / catch [Paper]
- Observational — not causal.
- Self-reported leisure-time PA; measurement error; healthy-user confounding.
- Mostly White health professionals / nurses — generalizability limits.
- Mutual adjustment and categorical cut-points affect how “plateau” is read.
- Not a Zone 2 training trial; no HR-zone prescription.
What we take for Zone 2 [Inference]
- Large long-term cohort evidence that both moderate and vigorous leisure activity associate with lower mortality, with diminishing returns at very high vigorous volumes and continued value to higher moderate volumes up to roughly the 300–600 min/week band.
- Compatible with Product keeping a Zone 2 / moderate aerobic lane beside HIT.
- Do not claim Lee proved “2×45–60 min Zone 2/week” — that dose is Siim-informed.
vs Siim’s use
| Siim framing | Paper |
|---|---|
| 2023 systematic review | Lee is 2022 prospective cohort — Siim’s (R) is O’Keefe 2023, which leans on Lee |
| Vigorous plateaus (~200 min/week in his prose) | [Paper] near-max ~150–300 VPA; ≥300 no clear further gain — Partial to his “200” |
| Moderate keeps helping (800 > 200 in his prose) | [Paper] further gains into 300–599; ≥600 similar to 300–599 — Partial (not an 800-vs-200 contrast) |
| −17% vs −35% | Not a single Lee contrast we verified as those two percentages |
Match to Siim claim: Partial (underlying data for his site story; numbers he quotes are not a clean paste from Lee).
Paywall note
Not paywalled via PMC HTML / NIHMS for this pass.