Recommended Amount of Aerobic Activity
To maintain cardiovascular health, adults need to engage in at least 150 minutes of moderate-intensity aerobic activity per week. This guideline, established by the American Heart Association and the World Health Organization, includes activities such as brisk walking, swimming, and cycling.
Alternatively, 75 minutes of vigorous activity per week or a combination of both types is also acceptable. The WHO suggests aiming for 300 minutes of moderate or 150 minutes of vigorous activity for additional benefits, with 150 minutes considered the minimum benchmark.
Defining Exercise Intensity
Aerobic exercise intensity is gauged by heart rate and breathing: during moderate activity, breathing quickens but talking remains possible; during vigorous activity, speaking without pausing for breath becomes difficult. This «talk test» helps accurately track exercise duration.
For example, half an hour of brisk walking and half an hour of a leisurely stroll have different effects on the body, so it’s important to consider not just the time spent but also the intensity of the workout. This prevents overestimating the benefits of low-intensity activity.
How to Distribute Activity Throughout the Week
The optimal approach is to perform aerobic exercise for at least 30 minutes on five or more days each week. However, workouts can be broken into shorter sessions, such as a brisk walk in the morning and another in the evening, both counting toward the total volume.
For beginners, it’s best to spread activity evenly to gradually increase duration and intensity, reducing the risk of overexertion and improving the chances of maintaining a regular routine.
Benefits Even with Irregular Activity
Even completing the weekly recommended amount of exercise in one or two days lowers the risk of cardiovascular disease compared to no exercise at all. These findings have been documented by the American Heart Association based on research.
The key is to move from a sedentary lifestyle to regular aerobic activity, starting with simple actions like walking and taking the stairs, gradually increasing effort as the body adapts.
Complementing Aerobic Activity with Strength Training
The World Health Organization also advises performing strength exercises targeting major muscle groups at least two days a week. These sessions complement aerobic exercise and contribute to overall health strengthening.
People with chronic illnesses or recovering from illness should consult a doctor before starting intensive training to ensure a safe and effective routine.
Conclusion
At least 150 minutes of moderate aerobic activity weekly is essential for strengthening the heart, with the option to gradually increase intensity and maintain consistent practice.