How Much Cardio Do You Really Need Each Week?

When it comes to improving your health, increasing longevity, or enhancing athletic performance, one question comes up repeatedly:

"How much cardiovascular exercise should I actually be doing?"

The answer depends on your goals, but it can be nice to know that the minimum recommendations are more achievable than you might think. Whether you're just starting your fitness journey or training for your next race, understanding the guidelines can help you build a routine that keeps your heart, lungs, and body healthy.

The Recommended Amount of Cardio

According to current physical activity guidelines, adults should aim for one of the following each week:

• 150–300 minutes of moderate-intensity aerobic exercise, or

• 75–150 minutes of vigorous-intensity aerobic exercise, or

• A combination of both moderate and vigorous activity

This recommendation should ideally be spread throughout the week rather than completed in one or two long sessions (I'm looking at you "Weekend Warriors").

What Counts as Moderate Intensity?

Moderate-intensity exercise raises your heart rate and breathing, but you can still carry on a conversation.

Examples include:

• Brisk walking

• Recreational cycling (road or stationary)

• Hiking on moderate terrain (loose gravel, rocks, roots)

• Swimming at an easy pace

• Dancing

• Mowing the lawn

What Counts as Vigorous Intensity?

Vigorous exercise significantly increases your heart rate and breathing. Holding a conversation becomes difficult or impossible.

Examples include:

• Running or jogging

• Fast cycling

• Lap swimming

• Rowing

• High-intensity interval training (HIIT)

• Competitive sports like basketball or soccer

  
  

Why Cardio Matters

Regular cardiovascular exercise provides benefits far beyond burning calories.

Consistent aerobic training can:

• Improve heart and lung function

• Lower blood pressure

• Improve cholesterol levels

• Reduce the risk of heart disease and stroke

• Help regulate blood sugar

• Improve mental health and reduce stress

• Increase energy throughout the day

• Improve sleep quality

• Enhance endurance for work, sports, and daily activities

• Improve lower body coordination

Even small increases in activity can produce meaningful improvements in health.

Is More Always Better?

After meeting the minimum recommendations, additional exercise can provide further health benefits.

Many active adults choose to perform:

• 300+ minutes of moderate exercise per week

• 150+ minutes of vigorous exercise per week

However, more isn't always better if recovery is neglected. Excessive training without adequate sleep, nutrition, and strength training may increase injury risk or contribute to burnout.

Quality and consistency matter more than simply accumulating hours.

Don't Forget Strength Training

Cardio is only one piece of a complete fitness program. If resistance training is performed at a high enough intensity with fewer rest periods, this can work towards your total number of minutes of cardiovascular activity as well! This is where HIIT has become popular.

Resistance training helps:

• Preserve muscle mass

• Improve bone density

• Increase metabolic health

• Reduce injury risk

• Improve balance and mobility

• Support healthy aging

A balanced routine combines cardiovascular exercise, strength training, mobility work, and recovery.

What If You're Just Getting Started?

If 150 minutes sounds overwhelming, remember that every minute counts.

Try starting with:

• A 10–15 minute walk after meals

• Three 20-minute walks each week

• Cycling with family on weekends

• Taking the stairs more often

• Parking farther from your destination

Gradually increase your duration and intensity over time. Consistency beats perfection.

Cardio for Performance

If your goal is improving athletic performance rather than general health, your training should become more specific.

Athletes often benefit from combining:

• Low-intensity aerobic training for endurance

• Tempo workouts for sustained effort

• Interval training for speed and conditioning

• Sport-specific conditioning

• Planned recovery days

The best program depends on your sport, training history, and current fitness level.

The Bottom Line

For most adults, aiming for 150–300 minutes of moderate-intensity cardio or 75–150 minutes of vigorous cardio each week is enough to significantly improve health and reduce the risk of chronic disease.

Remember:

• Some movement is better than none.

• Consistency is more important than perfection.

• Combine cardio with strength training for the best long-term results.

• Choose activities you enjoy—you'll be much more likely to stick with them.
  

At Show Me PT, we believe exercise should be sustainable, purposeful, and individualized. Whether you're recovering from an injury, training for your next competition, or simply trying to improve your overall health, building the right cardiovascular routine is one of the best investments you can make in your long-term well-being.