In what position is the stability ball exercise performed for hip flexion strengthening?

The correct position for performing the stability ball exercise for hip flexion strengthening is supine. In this position, the individual lies on their back on the floor or a mat, with the stability ball placed under their feet or calves. This setup allows for increased engagement of the hip flexors as the individual performs movements such as lifting the legs towards the torso or performing a pelvic tilt.

When the individual is supine, gravity is utilized effectively to aid in the strengthening of the hip flexors, and the stability ball provides an unstable surface that enhances core engagement and stability throughout the movement. This positioning also minimizes undue strain on the lower back, allowing the hip flexors to work more efficiently.

Other positions, such as standing or seated, may engage the hip flexors, but they typically do not utilize the stability ball in the same effective manner for this specific exercise focus. Therefore, the supine position is optimal for hip flexion strengthening with the stability ball.