Lower crossed syndrome pattern includes which of the following?

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Lower crossed syndrome arises from a predictable pattern of muscle imbalance around the pelvis and lower spine: the abdominal/core muscles and the gluteal muscles are weak and lengthened, while the hip flexors and the back extensors are tight and overactive. This combination pulls the pelvis into anterior tilt and increases lumbar lordosis, creating a crossover of opposing muscle groups that can contribute to low back pain and faulty movement.

The best answer reflects this pattern: the abdominal muscles are inhibited (weak), the hip flexors (rectus femoris and iliopsoas) are facilitated (tight/overactive), the thoraco-lumbar extensors are facilitated (overactive), and the gluteal muscles (gluteus maximus and medius/minimus) are inhibited (weak). This aligns with the classic lower crossed posture and related dysfunction.

The other options imply opposite or inconsistent activity (for example, hip flexors not shortened or abdominal muscles being overactive, or back extensors not overactive), which would not produce the characteristic anterior pelvic tilt and hyperlordosis seen in lower crossed syndrome.