OPSA Essentials Practice Test

Stage 5 focuses on maintaining a stable spine and constant core engagement while the legs move. The key action is lowering both legs from an extended position toward the floor, all while keeping the spine in neutral and the abdominal pressure steady. This combination trains coordinated control of the hip flexors and deep core muscles to prevent the lower back from arching or the pelvis from tilting, ensuring a safe and controlled progression. Lowering one leg at a time would disrupt symmetry and stability, so it isn’t the defining action here. Lifting the legs to tabletop represents a different, earlier stage that emphasizes different setup and control, not the full leg-lowering descent. Increasing external pressure to a specific number isn’t describing the movement pattern at all.