Aromatase inhibitors belong to an even broader class of drugs known as antiâestrogens. The other subcategory of drug under the anti-estrogens category is known as selective estrogen receptor modulators (SERMs), such as Nolvadex and Clomid. AIs and SERMs make up anti-estrogens.
Improve it: The only way to strengthen a weak psoas is by bringing your knee above 90 degrees. Sit with your knees bent on a low box or bench (6 to 10 inches high) (3). Maintaining good posture and keeping your abs tight, use your hips to raise one bent knee slightly higher than your hips.
There are two psoas muscles on each side of the back. The larger one is called the psoas major and the smaller the psoas minor. The psoas major, often known as âthe might psoas,â originates at the spine around the bottom of the rib cage and runs down the thigh along the femur. The psoas major works by flexing the hip.