A recent study found that people who do strength training for about two hours per week have a 20 percent lower risk of developing cardiovascular disease. This benefit was seen regardless of how much aerobic exercise they did, suggesting that resistance training offers independent protection for the heart. The findings add to growing evidence that both types of exercise are important for heart health.

Key Takeaways

  • Two hours per week of strength training was linked to a 20 percent lower risk of cardiovascular disease.
  • The association remained significant even after controlling for aerobic exercise levels.
  • The study analyzed data from more than 12,000 adults over an average of six years.
  • Both moderate and vigorous intensity strength training appeared to provide benefits.
  • Experts still recommend combining strength and aerobic exercise for optimal heart health.

What the Study Found

Researchers examined data from the National Health and Nutrition Examination Survey, which included over 12,000 adults aged 18 and older. Participants reported how much time they spent on strength training and aerobic exercise each week. The study then tracked cardiovascular events such as heart attacks, strokes, and related deaths over an average follow up of about six years.

After adjusting for factors like age, sex, smoking, and diet, the researchers found that people who did at least two hours of strength training per week had a 20 percent lower risk of cardiovascular disease compared to those who did none. Importantly, this benefit held true even when the analysis accounted for how much aerobic exercise participants performed. The findings were published in a recent issue of a peer reviewed journal.

Why Strength Training Helps the Heart

Strength training is known to improve several risk factors for heart disease. It can help lower blood pressure, improve cholesterol levels, and increase insulin sensitivity. Building muscle also boosts metabolism and helps maintain a healthy body weight. Additionally, resistance training may reduce inflammation and improve blood vessel function, both of which protect the cardiovascular system.

The study suggests these benefits are not simply a side effect of being more active overall. Instead, strength training appears to have direct effects on heart health that are separate from the well known advantages of aerobic exercise like walking, running, or cycling.

How Much Strength Training Is Enough?

The two hour per week threshold aligns with current physical activity guidelines. The American Heart Association and the American College of Sports Medicine recommend adults do strength training exercises at least two days per week. Each session should target all major muscle groups and include 8 to 12 repetitions per exercise.

Two hours can be broken into shorter sessions, such as 30 minutes four times a week or 40 minutes three times a week. The study did not find a significant difference between moderate and vigorous intensity strength training, so both approaches appear to be beneficial. Beginners should start with lighter weights and focus on proper form to reduce injury risk.

Combining Strength and Aerobic Exercise

While strength training alone was linked to lower heart disease risk, the study also confirmed that people who did both strength and aerobic exercise had the lowest risk. Aerobic exercise improves heart and lung function, while strength training builds muscle and bone density. Together, they provide comprehensive protection against chronic diseases.

Health experts advise aiming for at least 150 minutes of moderate aerobic activity or 75 minutes of vigorous aerobic activity per week, plus two strength training sessions. Even small amounts of exercise are better than none, and gradually increasing activity levels can lead to meaningful health improvements.

Frequently Asked Questions

Can strength training replace cardio for heart health?

No, strength training should not replace aerobic exercise. The study shows that strength training offers independent benefits, but the lowest risk of cardiovascular disease was seen in people who did both types of exercise. Current guidelines recommend a combination of aerobic and resistance training for optimal heart health.

What types of strength training are most effective?

Any form of resistance training that challenges your muscles can be effective. This includes using free weights, weight machines, resistance bands, or bodyweight exercises like push ups and squats. The key is to work all major muscle groups and gradually increase the resistance or number of repetitions over time.

Is two hours of strength training per week safe for beginners?

Yes, two hours per week is a safe and achievable goal for most beginners, as long as you start slowly and use proper technique. It is wise to consult a doctor before starting a new exercise program, especially if you have existing health conditions. A certified trainer can help design a safe routine that gradually builds strength.

This is an original report by Vital Signs Today, informed by reporting from Google News. Read the original source.

This article is for information only and is not medical advice. See our Medical Disclaimer.