Weak abdominals leads to which gluteal muscle weakness?

• A. Tight hip flexors
• B. Weak abdominals
• C. Tight thoracolumbar extensors
• D. Weak gluteus maximus

Answer: (D)

Coordinated trunk and hip control relies on the abdominal muscles helping to stabilize the pelvis and spine so the gluteus maximus can generate hip extension effectively. When the abdominals are weak, pelvic and spinal stability suffers, which disrupts the firing pattern of the gluteus maximus. That disruption can lead to underactivation and apparent weakness of the gluteus maximus during movements that require hip extension and pelvis control, such as squatting, stepping, or rising from a chair. So weak abdominals contribute to weakness of the gluteus maximus. The other options describe related issues (like compensations from tight hip flexors or back muscles) but don’t directly explain the link to the gluteus maximus weakness.