What type of exercise is NOT recommended for individuals with moderate aortic stenosis?

High-intensity activities are not recommended for individuals with moderate aortic stenosis due to the increased cardiovascular demands they place on the heart. Aortic stenosis causes a narrowing of the aortic valve, which can impede blood flow from the heart and lead to symptoms like chest pain, shortness of breath, and fatigue during exercise. Engaging in high-intensity activities can exacerbate these symptoms and potentially precipitate serious complications such as heart failure or arrhythmias, as the heart struggles to maintain adequate blood flow under increased stress.

In contrast, low to moderate dynamic exercises, such as walking or cycling at a comfortable pace, are usually deemed safer as they allow the heart to work within a manageable range without excessive strain. Similarly, low to moderate static exercises can often be performed cautiously, but care must be taken to avoid valsalva maneuvers which can temporarily raise blood pressure. Isometric resistance training can also pose risks, but moderate static exercises may be acceptable depending on individual tolerance and medical guidance. Therefore, high-intensity activities are particularly contraindicated in this population due to the heightened risk they present.