During triple extension stance leg gluteus maximus and psoas muscle must work in a synergistic fashion to ensure pelvic and axial stability in hip extension.

This allows for a better force transmission at toe-off, a powerful flexion of the swing leg hip and less compensatory movement of trunk and hip muscles.

This pattern is reflex-driven, therefor it should be executed with max intend. Try to keep a neutral spine, maintain a peripheral gaze, don’t lean back into your lumbar spine cheating your body into a hip extension, keep conscious contact with the ground, especially with your front foot and hallux area. Glut max and psoas activity should be felt before continuing with the next repetition.

Strong glut max and psoas capacity are prerequisites to any other biomechanically coherent movement of the human gait.