Recently diagnosed with 4.1 cm aortic root dilation per echocardiogram. Cardiac calcium score 3 years ago over 600. Passed stress treadmills x 2 a flying colors. Blood pressure normal, never hypertensive. Thin male, 150lbs, age 65, retired as an RN last and walk daily 5 to 10 miles. Cholesterol, and lipid panel and other Labs all normal. My burning question is regarding exercise: As I stopped going to the gym in March of 2020 when the pandemic hit, I've lost muscle tone, especially in my upper body, and desperately want to go back to the gym. I was never into heavy weightlifting, but rather machines. Is doing curls with 10 pound weights thought to be okay? Also, those machines for the chest on a lower weight safe? Also, any thoughts about gentle yoga and/or pilates? Many thanks and best wishes to everyone!