The Role of Muscle Mass in Heart Health
Dr. London explained that the legs constitute about 40-50% of total muscle mass. Strengthening these muscles can lead to improved insulin sensitivity and glucose control, which are pivotal in reducing cardiovascular risks.
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- Insulin Sensitivity: A study indicated that a 10% increase in muscle mass correlates with an 11% reduction in insulin resistance.
- Lipid Profiles: Higher muscle mass can lead to lower triglyceride levels and increased HDL (good) cholesterol, reducing the risk of artery hardening.
How Lower-Body Exercises Help
- Increased Nitric Oxide Production: This gas helps relax blood vessels, enhancing blood flow and nutrient delivery to vital organs.
- Vascular Function Improvement: Stronger muscles can dilate blood vessels, further promoting circulation.
- Reduced Inflammation: Higher muscle mass is associated with lower levels of inflammation, a key contributor to heart disease.