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.
Tight hamstrings can cause the hips and pelvis to rotate back flattening the lower back and causing back problems. Tight hamstrings can also be responsible for postural problems and other back problems such as sacroiliac joint pain, as they will tend to pull the pelvis out of normal position.