Strength & Muscle

Is Running Bad for Men Over 40? Knees, Heart and Joints

Middle-aged man stretching his quad against a stone wall after a run

No, running isn’t bad for most men over 40. Recreational running is linked to lower risk of death from all causes and from heart disease, and recreational runners actually have lower rates of knee and hip arthritis than sedentary people. Problems come from doing too much too soon, carrying extra weight at high mileage, or ignoring warning signs. Build up gradually and pair running with strength training, and it’s one of the best things a man over 40 can do.

Running and your knees

The most common worry is arthritis. A meta-analysis of 17 studies covering more than 114,000 people found hip and knee arthritis in:

GroupPrevalence of hip or knee arthritis
Recreational runners3.5%
Sedentary, non-running controls10.2%
Competitive or elite runners13.3%

Source: Alentorn-Geli et al., 2017.

The pattern matters. Running for fitness wasn’t associated with more arthritis; very high-volume competitive running was. Arthritis also depends on body weight, previous injuries and genetics, not just running. The study shows an association, not proof that running protects your knees.

If you already have knee pain or diagnosed arthritis, the guides to exercising with knee pain and exercise with osteoarthritis cover how to train around it.

Running and your heart

In a 15-year study of 55,137 adults with an average age of 44, runners had 30% lower risk of death from all causes and 45% lower risk of cardiovascular death than non-runners. Benefits appeared even at less than 51 minutes of running a week and slow speeds (Lee et al., 2014). Men who kept running over time did best.

The caution is for men with undiagnosed heart disease who jump straight into hard efforts. Hard running can expose a problem you didn’t know you had, which is why a quick health screen matters before you start.

When running does cause problems after 40

Running injuries in men over 40 usually trace back to a few causes:

  • Ramping up too fast. Tendons and bones adapt more slowly than your lungs. You can feel ready for 10 km long before your Achilles is.
  • Running every session hard. Racing yourself on every run piles up fatigue.
  • No strength training. A meta-analysis of sports injury prevention trials found strength training cut injury risk substantially, with more training linked to more protection (Lauersen et al., 2018).
  • Ignoring early pain. Small aches that change how you run become bigger injuries.

Who should get checked before running

Canada’s Get Active Questionnaire is a simple self-screen for starting more activity (CSEP). Talk to your doctor before running if you:

  • have heart disease, high blood pressure, diabetes or a family history of early heart disease;
  • get chest pain, dizziness or unusual breathlessness with effort;
  • take medication that affects heart rate or blood pressure;
  • have a joint that’s swollen, locks or gives way.

How to run after 40 without breaking down

  1. Run easy most of the time. You should be able to talk in full sentences on 80% or more of your runs.
  2. Build volume slowly. Increase weekly time in small steps, with a lighter week every third or fourth week.
  3. Lift twice a week. Calves, quads, hamstrings and hips take the impact; train them with step-ups, split squats, calf raises and Romanian deadlifts.
  4. Mix surfaces and shoes sensibly. Trails and track are gentler than hard concrete for some men; rotate if you run often.
  5. Respect Toronto winters. Icy sidewalks cause more injuries than miles. Treadmill or indoor track on bad days.

New to running entirely? Follow how to start running at 40, which covers the first eight weeks.

Running when you’re carrying extra weight

Heavier men can run, but the impact adds up faster. If your goal is fat loss and you’re well above a healthy weight, start with brisk walking, incline treadmill work or cycling for a few months while you lose some weight and strengthen your legs, then add short running intervals. That order gets you the fitness without asking your knees and Achilles to absorb a load they aren’t ready for.

Running alone is also a slow way to lose fat. Food drives most of it, and running makes you hungry. Treat running as a fitness and health habit first.

The bottom line

For most men over 40, running helps their heart and doesn’t harm their knees. It goes wrong when it’s rushed, done hard every time or done without strength work. If you’d like a coach to plan running and lifting together and adjust the load when your body talks back, weekly 1:1 coaching starts from $99 a week. To see where running fits in your week, read how much cardio a man over 40 should do.

Questions people also ask

Does running ruin your knees?

Not for recreational runners. A meta-analysis found hip and knee arthritis in 3.5% of recreational runners compared with 10.2% of sedentary controls. Competitive, high-volume runners had higher rates.

Should I stop running if my knees hurt?

Not necessarily. Reduce distance and speed, run on flatter routes, and add leg strength work. If pain persists, worsens during runs or comes with swelling or locking, see a physiotherapist.

Is running bad for your heart after 40?

For most men, regular moderate running is linked to lower cardiovascular risk. If you have heart disease, symptoms, or haven't exercised in years and have risk factors, get checked before running hard.

Is walking better than running after 40?

Walking is gentler and great for health, but running delivers more fitness per minute. Many men over 40 do well mixing both, or starting with walk-run intervals.

Sources

  1. Alentorn-Geli et al. (2017), The association of recreational and competitive running with hip and knee osteoarthritis, J Orthop Sports Phys Ther
  2. Lee et al. (2014), Leisure-time running reduces all-cause and cardiovascular mortality risk, J Am Coll Cardiol
  3. Lauersen et al. (2018), Strength training as superior, dose-dependent and safe prevention of acute and overuse sports injuries, Br J Sports Med
  4. CSEP — Get Active Questionnaire (pre-screening for physical activity)

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