Chest and Back Muscle Density on Routine CCTA Predicts 31% Lower Heart Attack Incidence
AI-derived muscle quality on standard heart scans independently forecasts lower heart-attack and mortality risk. The link supports resistance training as a rapid, actionable intervention, but causation is unproven. Next studies must test whether training-induced density gains translate into fewer events.
Key gaps remain. No serial scans or activity diaries were available to test whether initiating resistance training after the index CCTA alters subsequent attenuation or event rates. Randomized trials that combine supervised strength programs with repeat CT muscle phenotyping are now required to move from association to modifiable target.
Williams et al. follow-up: Within 36 months a prospective cohort will report that patients randomized to supervised resistance training show measurable CT attenuation gains and a 15% relative drop in MACE versus controls.
Sources (3)
- [1]Primary Source(https://pubs.rsna.org/doi/10.1148/radiol.230454)
- [2]Supporting Source(https://www.ahajournals.org/doi/10.1161/CIR.0000000000001185)
- [3]Supporting Source(https://www.jacc.org/doi/10.1016/j.jacc.2022.08.759)