What is a common modification for clients with limited flexibility during Pilates?

Using props like straps or blocks is a common modification for clients with limited flexibility during Pilates because these tools can help enhance the effectiveness of the exercise while accommodating the client's range of motion. Straps can allow individuals to extend their reach without straining their muscles, while blocks can provide support and elevate the body to make certain positions more accessible. This utilization of props not only aids in achieving better alignment but also encourages a deeper understanding of the movement patterns without compromising safety or form.

Other options such as altering the music tempo or performing exercises faster do not address the core issue of flexibility and may even lead to further discomfort or improper execution of movements. Decreasing the number of repetitions may offer a simpler way to manage physical exertion, but it does not directly support clients in overcoming challenges related to flexibility. Therefore, employing props stands out as the most effective strategy for enhancing participation and success in Pilates for those facing flexibility limitations.