Which of the following can help improve foot alignment in a supinating client during exercises?

Providing support with a ball between the ankles is effective in improving foot alignment for clients who supinate. This method helps to promote the proper alignment of the feet and encourages the client to engage the inner thighs and the muscles of the foot more actively. By placing a ball between the ankles, it creates a gentle inward pressure that can guide the feet into a more aligned position, which counteracts the tendency to roll outward associated with supination. Additionally, this technique helps in fostering awareness and control of the lower extremities during exercises, ensuring that the client maintains correct alignment throughout their movements.

In contrast, other options may not directly address the specific alignment issues related to supination. Using a resistance ball focuses more on stability and core engagement rather than foot positioning. Placing weights on the feet can potentially exacerbate misalignment by adding additional load without promoting correction. Incorporating foot straps on the reformer might assist with control during movements but may not directly encourage the necessary adjustments for better alignment in a supinator.