In addition, since isometric exercises are done in a static position, they won't help improve speed or athletic performance. They can be useful, however, in enhancing stabilization â maintaining the position of the affected area â since muscles often contract isometrically to aid in stabilization.
Etiology. Most (85-95%) substernal thyroid masses represent benign goiter. Historically, goiters have generally occurred because of iodine deficiency, although this is now observed primarily in developing nations.
The adrenal glands, also known as the suprarenal glands, are small hormone-producing organs located just above each kidney. The adrenal glands produce several hormones, including adrenalin, cortisol and aldosterone. Adrenal gland enlargement is most commonly detected with diagnostic imaging tests, such as a CT scan.he adrenal glands produce several hormones, including adrenalin, cortisol and aldosterone. Adrenal gland enlargement is most commonly detected with diagnostic imaging tests, such as a CT scan.