A stingray weighing nearly 800lb is thought to be the largest freshwater fish ever caught by rod and line. It was so big that several men on board a small fishing boat had to take it in turns to help on the rod.
The hamstrings, a group of three muscles located in the back of the thigh, can contribute to lower back pain. So keeping the hamstrings properly stretched and limber is a good formula for relief of lower back pain or sciatica pain, which tends to run down one side of a leg. A regular routine of hamstring stretching eases tightness that generates stress on the low back. The hamstrings run from the pelvis down to the knee.
This is NOT an easy exercise, but it's amazing for your hamstrings. It's like doing a Superman or Back Hyperextension, but using your hamstrings to do the work instead of your back. You'll need someone to hold your feet as you use your hamstrings to lower your body to the floor and pull back up.