How to perform a modified hurdlers stretch to reduce back pain and improve overall flexibility. If you have experienced back pain or have a chronic back problem, flexibility and body style are two of the most common reasons for it. If you have ever been to a track meet, you may have noticed athletes performing this stretch. The modified hurdlers stretch can improve leg and pelvic mobility and flexibility. We are highly adaptive, and sometimes, that adaptation is why we hurt. This maneuver if done regularly will help improve your flexibility, and help undo ligamentous stiffness that has developed over the years due to poor postural habit. Check it out below. This maneuver is great for golfers and other athletes. It’s also great for track and field athletes.