A leg drive plank on the yoga ball starts with you assuming a plank position with your hands on the ground and your shins resting on the ball. Engage your core muscles to maintain stability. Next, while keeping your body in a straight line from head to heels, gently press your shins into the ball, driving it forward. Hold this position for a moment, feeling the increased engagement in your core and upper body, then return to the starting position with control. Repeat the movement for a set number of repetitions or time, focusing on controlled and deliberate motions to challenge your stability and strength further. This exercise effectively targets the core, shoulders, and stabilizer muscles while also improving balance and coordination.