Measurement equipment for SBP, DBP and HR
SBP, DBP, and HR were measured using an automatic blood pressure monitor (OMRON, HEM-7210, Japan). SBP, DBP, and HR was measured one time per minute for a total three times immediately before and after music therapy. The average value was then calculated and used. All statistical analyses such as paired-test, unpaired-test, and analysis to verify music therapy follow-up effects were conducted using a commercial software (SPSS for Windows, version 21.0; SPSS Inc., Chicago, IL, USA). Results are expressed as average ± standard deviation. Significance level was set at 