Study on Change of Muscle Tone and Stiffness According to upper trapezius Mild Pain tf young Adults Kim Jaehyun1, Hyong Inhyouk1 1Department of Physical Therapy, Shinsung University, Daehak-ro 1, Jeongmi-Myeon, Dangjin-si, Chungchengnam-do, Republic of Korea Online published on 14 May, 2018. Abstract The purpose of this study was to compare the muscle tone of younger adults with mild pain in upper trapezius muscle The subjects were composed of 90 young college students (M =26, F =64) with mild or no pain in upper trapezius. The degree of mild pain was divided into four groups of 10 point visual analog scale (VAS) 0, 1, 2, and 3 to compare muscle tone and stiffness. The subjects were measured pain (VAS), muscle tone, and stiffness of the trapezius in resting supine position. Statistical analysis was performed using one way ANoVA, correlation, and regression analysis on SPSS 24.0 version. There were statistically significant difference between groups in muscle tone and stiffness of trapezius (p<0.05). In the post hoc analysis, there was a difference between the VAS 3 group and the other groups. Correlation studies showed a correlation between pain, muscle tone and stiffness. The results of the regression analysis showed that the higher the pain and stiffness, the greater the muscle tone. Therefore, the difference in muscle tone due to pain was found in VAS 3 or higher and showed a strong relationship with muscle stiffness. In the future, the relationship between more severe pain and muscle tone will be needed. Top Keywords Visual analog scale(VAS), Muscle tone, Stiffness, Myotonometer, Upper trapezius. Top |