What muscles are facilitated in lower crossed syndrome?

In lower crossed syndrome, the muscles that are facilitated or overactive include the iliopsoas and rectus femoris, which are located in the hip flexors and front of the thigh. This is due to the inhibition or underactivity of the opposing muscles, specifically the gluteus maximus and lower abdominals. The deep cervical flexors and middle trapezius are not directly related to lower crossed syndrome, which is why options A, C, and D are incorrect.