Having the ability to hinge and crease your body at your hips may be the most important aspect of movement quality when it comes to golf. Our hips are meant to be mobile, and if they aren't we result to major compensations with often times the lower back taking over and leading to eventual pain and injury through repeated rotation. For the hip hinge, set up with feet about hip width, have a slight bend in your knees and tilt the ViPR (or you can use a golf club) forward. As you tilt forward, crease your body at your hips trying to stick your butt out as far as you can. You should have your weight shift back to your heels and this should elicit a hamstring stretch. Then as you stand back upright, drive the hips forward squeezing your glutes to finish the movement. Perform 2 sets of 10 reps.