What exercise can serve as a dynamic flexibility exercise for the back leg's hip flexor and the front leg's gluteus maximus?

The forward walking lunge is an effective dynamic flexibility exercise for targeting the hip flexor of the back leg while also engaging the gluteus maximus of the front leg. This movement involves stepping forward and lowering the body into a lunge position, which requires the hip flexor of the back leg to stretch as it is extended behind. Simultaneously, the front leg's gluteus maximus contracts to stabilize and drive the body upwards as you push off that leg to step into the next lunge.

Incorporating this exercise into a routine enhances flexibility in the hip flexors and strengthens the glutes, effectively preparing the body for more intense physical activity. This dual action is what makes the forward walking lunge a prime choice for promoting dynamic flexibility in both muscle groups involved during the movement.