The patient feels a sudden pain in the lower back while twisting, pushing or pulling. At first, it may be possible to continue the exercise. But after two to three hours, bleeding in the muscles stretches the torn muscle and tendons.
The spasm that results causes severe back pain that gets worse with any movement of the back. The patient usually prefers to lie still, curled up with the knees bent and the spine arched forward.
Causes of Muscle spasm
Spasms happen often when a muscle is swollen and tender (inflamed) or strained. Any great force can tear the muscles and tendons of the lower back. This occurs commonly in sports like weight lifting, football, basketball, baseball or golf that require pushing or pulling or sudden twisting of the back.
The risk of back spasm goes up if you have:
- A pelvis that tips forward more than normal
- Any back weakness such as arthritis, spondylolysis, spondylolisthesis, disk rupture, spinal stenosis, or a tumor
- Tight hamstrings, the tendons that run down the back of the legs
- Weak or inflexible muscles along the spine
- Weak stomach muscles