Running and Strength Training for Heart Health

If you run regularly, adding strength work can feel like stealing time from the miles. For general health, though, the two activities belong in the same week. The CDC’s adult guidance calls for aerobic activity and muscle-strengthening activity on at least two days. That recommendation is a population health floor, not a race-training ceiling.

The evidence behind a combined routine is encouraging. It cannot tell an individual runner that a particular lift will prevent a heart attack, or that a precise number of lifting minutes is optimal.

What the studies actually measured

A 2022 U.S. cohort study of 416,420 adults associated muscle-strengthening exercise alongside aerobic activity with lower mortality risk than meeting aerobic activity alone. Participants reported their activity; researchers observed outcomes over time. Differences in health, diet, and other habits can remain even after statistical adjustment. The result supports making room for both activities, but it is not a trial proving that adding two gym sessions causes a particular reduction in risk.

A 2026 analysis of three long-running U.S. cohorts also found lower all-cause and cardiovascular mortality among people reporting resistance training, after accounting for aerobic activity. It tracked activity repeatedly, which is useful, but still relied on questionnaires and remained observational. In that analysis, 90–119 minutes of weekly resistance training was associated with a 19% lower cardiovascular mortality rate than no resistance training. That is a group association, not an individual prediction or a prescription for runners to lift for exactly 90 minutes.

Older pooled studies suggested the greatest association at roughly 30–60 minutes a week, while the newer cohort found a broader range. Neither establishes a harmful threshold beyond 60 minutes. The vault article’s claim that extra lifting raises cardiovascular risk is therefore too strong. Likewise, the evidence does not justify a universal upper limit on running for heart health; U.S. guidance says additional aerobic activity can bring additional benefit.

Translate the guidance into a runner’s week

The CDC offers two aerobic examples: 150 minutes of moderate activity, or 75 minutes of vigorous activity, plus muscle-strengthening work on at least two days. A runner training for a 10K or marathon may do more aerobic work for performance. Running pace alone does not reliably classify intensity for everyone, so use the effort of the session rather than assuming every mile is vigorous.

Editorial planning suggestion: keep two short, repeatable strength sessions and cover major muscle groups across the week. A squat or step-up, a hinge, a push, a pull, and calf work can be a simple starting menu. Start with manageable loads and add work gradually. Our strength-training guide has a fuller exercise framework; its sets and reps are coaching choices, not mortality-study doses.

Place lifting where it does not repeatedly spoil a key run. If heavy legs make the next day’s intervals or long run suffer, move the lift or reduce its load. Our workday running guide can help protect a realistic slot. The goal is a sustainable mix, not a perfect weekly minute count.

If you have known cardiovascular disease, symptoms during exercise, or a clinician’s activity restrictions, ask your care team how to begin or progress. Stop exercising for chest pressure, fainting, or unusual shortness of breath. Call 911 for severe chest pain, difficulty breathing, or unconsciousness. This article is general information, not a diagnosis or personal exercise clearance. See our medical disclaimer.

Sources

• CDC, Adult Activity: An Overview, current U.S. aerobic and muscle-strengthening guidance.
• Coleman et al., dose-response association of aerobic and muscle-strengthening activity with mortality, U.S. observational cohort, 2022.
• Zhang et al., long-term resistance training and mortality, three U.S. observational cohorts, 2026.
• Momma et al., muscle-strengthening activity and health outcomes, systematic review of cohort studies, 2022.
• American Heart Association, When to call 911, emergency warning signs.