研究目的:
Nonspecific neck pain (NSNP) is one of the most common musculoskeletal problems treated by orthopedic physicians and physiotherapists. NSNP has an annual incidence rate of 38 to 73% and a lifetime prevalence of approximately 48%, leading to both economic and social problems.Due to increased disability-adjusted life-years from 17 million (95% confidence interval (CI): 11.4-23.7) in 1990 to 29 million (95% CI: 19.5-40.5) in 2016, Chronic neck pain is a common musculoskeletal disorder worldwide. No specific cause for neck symptoms assigned for most patients so it described as non-specific chronic neck pain (NSNP)