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.
Because the psoas is a big and potentially strong muscle, youâll be able to lengthen it most effectively by stretching one side at a time in poses such as anjaneyasana (lunge pose) and virabhadrasana I (warrior pose I), where the hip of the back leg is in extension.