The general salary range can be from $35, 000 to $100,000 annually, depending on certif â¦ ication, etc. The hours involved per week can also vary from a normal 40 hours to 60 plus hours weekly, which will also impact how much per hour they make.
The most common causes of neck cramps or spasms are torticollis, sprain or strain, and muscle spasm.Other possible causes, such as gastroesophageal reflux disease (gerd), are more rare.he most common causes of neck cramps or spasms are torticollis, sprain or strain, and muscle spasm.
Causes of Back Muscle Spasms Video. Muscle spasm is an involuntary contraction of a muscle that can cause a great deal of pain. When the facet joints of the spine become injured or inflamed, the muscles supporting the spine can spasm causing low back pain and limitation in motion.auses of Back Muscle Spasms Video. Muscle spasm is an involuntary contraction of a muscle that can cause a great deal of pain. When the facet joints of the spine become injured or inflamed, the muscles supporting the spine can spasm causing low back pain and limitation in motion.