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.
The Fix. Psoas Stretch: Keep hips under ribs, shift the knee forward and sink the hips down as the body moves forward. Rectus Femoris Stretch: Sit back and gently reach your hands behind to the bench for support. Tuck your pelvis under to avoid excessive arch in your lower back. Extend your hips forward and feel the stretch in the front of your thigh. Rectus Femoris Release: Hold the top of your thigh on the roller when you feel the painful area. Keep it on for 30 seconds, then roll down and out to find more spots. Repeat four times. Barbell Hip Raise: Push your heels into the floor, brace your core and squeeze your glutes as your hips rise.