Many Americans experience back, neck, and muscle pain from a variety of sources. However, the primary cause of this pain results from poor posture. In fact, chronic back pain, which is the number one reason for missed work days and second most common cause of disability, is often the result of incorrect or poor posture while standing and/or sitting. Moreover, being overweight, poor posture, and repetitive or overuse movements can also contribute to the strain on the back and other potential problem areas. As a result, the added strain often causes spasms, pain, and tense muscles in the hips, glutes, back, neck, and legs.