Cardiovascular disease remains one of the leading causes of death worldwide. In the United States alone, there are approximately 805,000 heart attacks each year. Faced with this alarming statistic, Dr. Jeremy London, a renowned cardiologist, recently shared a fascinating perspective on prevention. According to him, the secret lies not only in endurance, but also in strengthening the lower body muscles.
Indeed, targeting the legs during workouts significantly increases overall muscle mass, a key factor in maintaining excellent cardiovascular health. This approach is even considered the best exercise for heart health by many medical specialists.
The central role of muscle mass:
Dr. London explains that the legs alone represent between 40 and 50% of our total muscle mass. By strengthening these large muscles, the body drastically improves its insulin sensitivity and its ability to regulate blood glucose. These two elements are absolutely essential for mitigating cardiovascular risks.
Insulin sensitivity: Data shows that a 10% increase in muscle mass is directly correlated with an 11% decrease in insulin resistance.
Lipid profile: Building muscle promotes lower triglycerides while increasing HDL cholesterol (the “good” cholesterol), which significantly limits the hardening of the arteries.
How lower-body exercises protect the heart
: Intensely working the lower body triggers a series of extremely beneficial physiological reactions. This is an unexpected factor that very effectively reduces cardiac risk through several physiological mechanisms:
Nitric oxide production: Muscle exertion stimulates the release of this valuable gas, which helps relax blood vessels. The result: improved blood circulation and optimal nutrient delivery to vital organs.
Improved vascular function: Strong muscles contribute to the dilation of blood vessels, thus facilitating the heart’s pumping action.
Reduced inflammation: Greater muscle mass is associated with lower levels of systemic inflammation, and chronic inflammation is a major driver of heart disease.
This is confirmed by scientific research.
Dr. London’s claims are widely supported by recent medical literature. A study published in 2024 in the European Journal of Preventive Cardiology demonstrated a very strong link between quadriceps strength and a reduced risk of heart failure.
Furthermore, research presented at the 2023 European Society of Cardiology congress revealed that patients with strong leg muscles have a significantly lower risk of developing heart failure after a heart attack. This is precisely the type of training recommended by this cardiologist to prevent heart attacks and maximize one’s chances of longevity.
Practical recommendations to integrate into your daily routine:
To take advantage of these discoveries and protect your heart, here are some simple strategies to implement in your exercise routine:
Prioritize leg workouts: Incorporate compound exercises like squats, lunges, and leg presses at least twice a week.
Maintain aerobic activity: Aim for about 150 minutes of moderate-intensity cardiovascular activity each week, such as brisk walking or cycling.
Be consistent with strength training: Schedule dedicated strength training sessions at least two days a week to optimize your overall fitness.
Preventing heart disease inevitably involves physical activity, and especially developing lower-body strength. By paying particular attention to your legs, you’re making a potentially life-saving decision for your long-term cardiovascular health.
