What muscles are typically underactive in association with lower crossed syndrome?

Lower crossed syndrome is characterized by a specific pattern of muscle imbalances that affects posture and movement. In this condition, the abdominals are often underactive. This underactivity can lead to decreased stability and support for the spine, contributing to abnormal movement patterns and increasing the risk of injuries, particularly in the lower back and hips.

When the abdominals are underactive, other muscle groups may become overactive as they compensate for this lack of stability. This imbalance is a key feature of lower crossed syndrome, where the hip flexors and lower back muscles tend to be overactive, creating an anterior pelvic tilt and ultimately affecting functional movement. Therefore, identifying and addressing the underactivity of the abdominals is crucial in designing an integrated personal fitness program aimed at correcting these imbalances and promoting proper posture and movement efficiency.