Which exercise focuses on abdominal strength through a pumping action?

The exercise that focuses on abdominal strength through a pumping action is the Hundred. This exercise involves lying on your back with your legs raised and extended, while your head, neck, and shoulders are lifted off the mat. You pump your arms vigorously up and down while simultaneously engaging your abdominal muscles. The pumping action, along with the controlled breath, enhances core activation and endurance, making it a fundamental exercise in the Pilates repertoire aimed at building strength in the abdominal region.

The Hundred serves as a warm-up for the body, stimulating circulation and increasing heart rate, which also contributes to warming up the core muscles. This focus on rhythmic pumping and controlled breathing is integral to engaging and conditioning the abdominals effectively.