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.
Stretch out your hamstring. If you have a cramp on the back of your thigh, stretch out your hamstring. There are different ways to stretch the hamstring that may help alleviate the cramp. Using a towel or belt, lay flat on the ground and raise the affected leg.