How many repetitions are required for the "hundred" exercise in Pilates?

The "hundred" exercise in Pilates is a foundational movement that primarily focuses on core engagement, breath control, and circulation. Traditionally, this exercise consists of performing 100 pumps of the arms while maintaining a stable and controlled torso. The repetition structure of 10 breaths correlates with the 100 arm pumps, as participants typically pump the arms vigorously while inhaling for five counts and exhaling for five counts, reaching a total of 100 pumps.

This approach emphasizes endurance and stability while integrating breath, which is essential in Pilates practice. The number of breaths and pumps reinforces the combination of movement and breath awareness, core activation, and maintaining a strong alignment—key principles of Pilates. This methodical repetition helps to condition the core muscles and improve coordination, making the "hundred" a distinctive and effective part of a comprehensive Pilates routine.