What Exercises Should I Do Cardio Strength More?

If you can only do one type of exercise for the rest of your life, strength training is the better choice for long-term health. But the most effective routine is not a choice between cardio and strength—it is a combination of both. You should do strength training at least two days per week and cardio most days of the week, because they build different aspects of fitness that your body needs.

What Is the Difference Between Cardio and Strength Training?

Cardio and strength training stress your body in different ways. Cardio—also called aerobic exercise—raises your heart rate and keeps it elevated. Running, cycling, swimming, and brisk walking all count. This type of exercise trains your heart and lungs to deliver oxygen to your muscles more efficiently. It builds endurance.

Strength training uses resistance to challenge your muscles. Lifting weights, using resistance bands, or doing bodyweight exercises like push-ups and squats all count. This type of exercise builds muscle mass, strengthens bones, and improves your power. It builds capacity.

These are not competing goals. They are complementary systems. Your heart needs aerobic conditioning to pump blood effectively. Your muscles need resistance to stay strong as you age. A complete exercise plan addresses both.

What Exercises Should I Do Cardio Strength More?

Do both, but structure them differently. The American College of Sports Medicine recommends at least 150 minutes of moderate-intensity cardio per week, or 75 minutes of vigorous-intensity cardio per week. It also recommends strength training at least two days per week, targeting all major muscle groups.

This means cardio happens more often. Strength training happens less frequently but with higher intensity per session. That structure works because muscle needs recovery time after resistance work, while cardio can be done on most days of the week.

A practical weekly schedule might look like this:

• Monday: Strength training—full body
• Tuesday: Cardio—30 minutes moderate
• Wednesday: Strength training—full body
• Thursday: Cardio—30 minutes moderate
• Friday: Strength training—full body
• Saturday: Cardio—longer session or higher intensity
• Sunday: Rest or light walking

This is one example, not a prescription. The key principle is that strength sessions are spread out with rest days between them, and cardio fills the other days.

Why Strength Training Matters More as You Age

Muscle mass naturally declines with age. After age 30, most adults lose about 3 to 8 percent of their muscle mass per decade. This process accelerates after age 60. Strength training is the single most effective way to slow or reverse this decline.

More muscle means a higher resting metabolic rate. Muscle tissue burns more calories at rest than fat tissue does. This makes weight management easier over time. It also means better glucose control, because muscle tissue absorbs glucose from the blood.

Strength training also builds bone density. Weight-bearing exercise stimulates bone-forming cells. This reduces the risk of osteoporosis and fractures later in life. No cardio machine can do this the way resistance training can.

For adults over 50, strength training has an additional benefit: fall prevention. Stronger leg muscles and better balance reduce the risk of falls, which are a leading cause of serious injury in older adults.

Why Cardio Matters for Your Heart and Brain

Cardio directly trains your most important muscle: the heart. Aerobic exercise strengthens the heart muscle, allowing it to pump more blood with each beat. This lowers your resting heart rate and reduces blood pressure over time.

Regular cardio also improves cholesterol profiles. It raises HDL—the “good” cholesterol—and lowers triglycerides. These changes reduce the risk of heart disease, stroke, and type 2 diabetes.

Cardio has clear benefits for brain health as well. Aerobic exercise increases blood flow to the brain and stimulates the release of growth factors that support new brain cells. Some research suggests this improves memory and executive function, particularly in older adults.

The mental health benefits are equally important. Cardio releases endorphins, which improve mood and reduce stress. Regular aerobic exercise is one of the most effective non-drug interventions for mild to moderate depression and anxiety.

How to Combine Cardio and Strength in One Workout

You do not need separate days for each. Many people combine both in a single session. The order matters, though.

If your primary goal is building strength, do strength training first while your muscles are fresh. If your primary goal is cardiovascular endurance, do cardio first. If you are doing both in one session, strength before cardio is generally the better order for most people.

One efficient approach is circuit training. This involves moving from one strength exercise to another with minimal rest. Your heart rate stays elevated throughout, giving you cardiovascular benefits while you build muscle. This is not the same as a dedicated cardio session, but it is a time-efficient option.

Another approach is to do a short cardio warm-up—5 to 10 minutes of brisk walking or cycling—before strength training. This raises your core temperature and prepares your muscles for work. After strength training, finish with 10 to 15 minutes of moderate cardio to cool down.

How Many Repetitions and Sets Should You Do?

The right number of repetitions depends on your goal. For general health and muscle maintenance, 8 to 12 repetitions per set works well for most people. This range builds both strength and muscle size.

For pure strength gains, fewer repetitions—3 to 6—with heavier weight is more effective. For muscular endurance, higher repetitions—15 to 20—with lighter weight is appropriate.

Most experts recommend 2 to 3 sets of each exercise. The last few repetitions of each set should feel challenging. If the last repetition feels easy, the weight is too light.

Choose a weight where you can complete the target repetitions with good form, but the final 2 to 3 repetitions feel difficult. This is called working to near fatigue. It is the stimulus that triggers muscle adaptation.

Which Cardio Is Best: Steady State or Intervals?

Both forms of cardio have value. Steady-state cardio—maintaining a consistent pace for 30 to 60 minutes—builds aerobic endurance and is easier to recover from. It is the foundation of any cardio program.

High-intensity interval training, or HIIT, alternates short bursts of very hard effort with periods of recovery. A typical interval session might be 30 seconds of all-out sprinting followed by 90 seconds of easy walking, repeated 6 to 8 times.

HIIT produces similar cardiovascular benefits in less time than steady-state cardio. Some research suggests it also improves insulin sensitivity and blood pressure more efficiently. However, HIIT is harder on the body and requires more recovery time.

Most people benefit from a mix. Do steady-state cardio on most days. Add one or two interval sessions per week if your joints tolerate it and you have adequate recovery time.

What About Walking? Does It Count as Cardio?

Yes, brisk walking counts as moderate-intensity cardio. Walking at a pace where you can talk but not sing is considered moderate intensity. This meets the definition of aerobic exercise.

Walking has a lower injury risk than running and is accessible to almost everyone. Studies consistently show that regular walking reduces the risk of heart disease, stroke, and premature death. It also improves mood and supports healthy weight management.

The main limitation is intensity. Walking is rarely vigorous enough to produce the same cardiovascular adaptations as running or cycling. If you are already fit, walking alone may not challenge your heart enough. But for sedentary people starting an exercise program, walking is an excellent first step.

To make walking more effective, add hills, increase your pace, or carry light hand weights. These small changes increase the cardiovascular demand without adding joint stress.