If a client demonstrates an excessive forward lean during the overhead squat assessment, which of the following muscles should be stretched during the client's warm-up?

The hip flexor complex should be stretched during the warm-up.

Explanation:

The hip flexor complex is a group of muscles that are on the hip and that helps to flex and move back and forward the hip.

In order to avoid an excessive lean forward during squats, this complex should be stretch during warm-up.