Kneel on one knee with the other foot forward in a lunge position
Tuck your pelvis under slightly
Shift your weight forward until you feel a stretch in the front of the hip of the kneeling leg
Keep your torso upright
Raise the arm on the kneeling side overhead for a deeper stretch
Hold the stretch for 20 to 30 seconds
Switch sides
Perform the stretch 2 to 4 times per side
Try a half-kneeling hip flexor stretch with the back glute gently squeezed
Use a low lunge yoga pose with the back knee on the floor
Keep the back leg straight and the hips facing forward if doing a standing lunge stretch
Avoid arching your lower back
Breathe slowly and evenly while holding the stretch
Stop if you feel sharp pain