How Much Cardio Should You Do Alongside Lifting?

For most adults, cardio and lifting can sit side by side without much trouble. The more useful question is how much aerobic work your recovery, schedule and goals can handle. General guidance is a reasonable place to begin, and the details should be adjusted based on how you feel over several weeks.

Start from the general guidelines

The World Health Organization recommends that adults aged 18 to 64 get at least 150 to 300 minutes of moderate-intensity aerobic activity per week, or 75 to 150 minutes of vigorous activity, or an equivalent mix. The same guidance recommends muscle-strengthening activity on two or more days a week. If you lift two or three times a week, you can meet the aerobic target with brisk walking, cycling, swimming or a sport on the other days.

A daily walk is often the easiest way to build an aerobic base without adding much fatigue to your lifting sessions. Many people find it the least disruptive addition to a strength program.

Think about what the cardio is for

Cardio serves different purposes: general health, endurance for a sport, or simply feeling better between sessions. Those goals call for different amounts. If your main aim is strength or muscle, a moderate amount of aerobic work usually fits well. If you are training for a long-distance race, running volume will likely need to take priority and the lifting can be adjusted around it.

Hard cardio close to a heavy lifting session can leave you too tired to lift well. Research on combining endurance and strength training is mixed, so the most practical test is whether your strength numbers hold steady over several weeks. If they drop, reduce the intensity or volume of the cardio first.

Choose low-impact options when joints complain

Running and jumping are effective but place more load on the knees, hips and ankles. Walking, cycling, rowing, elliptical training and pool-based work are alternatives that many people use when impact bothers them. Pain should guide intensity. Mild muscle warmth after a session is common, but sharp or worsening joint pain is a sign to change the plan. If it persists, have it assessed by a physiotherapist or doctor.

Watch recovery, sleep and age

Recovery can take longer for some people, particularly as they get older. Muscle mass and strength tend to decline with age, and resistance training helps preserve them, so keep the lifting in the plan even as cardio grows. Sleep matters as well. Adults are generally advised to aim for 7 or more hours per night, and poor sleep can make both kinds of training feel harder.

If you have asthma, exercise-induced bronchoconstriction is common, and your warm-up and choice of activity should be planned with a doctor.

Takeaway

Start with the general guidelines, match your cardio to your goal, and choose low-impact forms if your joints object. Keep lifting as a priority, watch your strength, energy and sleep, and adjust gradually when the balance feels off.