5. Limitations
The limitations of this study are the small sample size, and the potential differences in skills and techniques of therapists, even though we participated in 3 therapists. On the other hand, this is a single center clinical study and participants in this study were all indoor white-collar workers who had received higher education. The singularity of the subject profession and work environment is also a limitation of this study. It would be interesting to repeat this study with additional measurement tools, and it is also recommended to conduct large-scale multi-center clinical research and extend the follow-up time and the long-term effects of CST. Although this study may provide valuable results to further support clinical decision-making, further research is needed.