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.
Neck spasm is a sudden and involuntary contraction, or uncontrollable tightening and shaking, of a muscle in response to strain, overuse, weakness, or muscle pain related to injury or a disorder.In some conditions, such as cervical dystonia, the spasm may cause your head to turn or to jerk.eck spasm is a sudden and involuntary contraction, or uncontrollable tightening and shaking, of a muscle in response to strain, overuse, weakness, or muscle pain related to injury or a disorder.
In discussing back muscle spasms, it's important to remember that sometimes spasms of the muscle in the back is just a spasm of the muscle. When I say that, what I mean is muscles have their own intrinsic protective mechanisms. muscle spasm is the body's method of protecting injured structures, or as a means to protect itself from injury. Muscle spasms in the back can be caused by a muscle strain, a sprained muscle, or an underlying condition. 1  Tweet. 2  Print.