Cortical activation pattern during shoulder simple versus vibration exercises： a functional near infrared spectroscopy study

• Published in: Neural regeneration research Vol. 12; no. 8; pp. 1294 - 1298
• Main Authors: Jang, SungHo, Yeo, SangSeok, Lee, SeungHyun, Jin, SangHyun, Lee, MiYoung
• Format: Journal Article
• Language: English
• Published: India Medknow Publications and Media Pvt. Ltd 01.08.2017; Medknow Publications & Media Pvt. Ltd; Department of Physical Medicine and Rehabilitation, College of Medicine, Yeungnam University, Daegu, Republic of Korea%Department of Physical Therapy, College of Health Science, Dankook University, Cheonan-si, Republic of Korea%Robot System Research Division, Daegu Gyeongbuk Institute of Science & Technology, Daegu, Republic of Korea%Department of Physical Therapy, College of Health and Therapy, Daegu Haany University, Gyeongsan-si, Republic of Korea; Medknow Publications & Media Pvt Ltd; Wolters Kluwer Medknow Publications
• Subjects: Brain stimulation; Cerebral cortex; Exercise; Hemoglobin; Medical imaging; nerve regeneration; functional near infrared spectroscopy; cortical activation; shoulder vibration exercise; flexible pole; neural regeneration; Neurophysiology; Physical fitness; Physiological aspects; Physiological research; Shoulder; Software; Spectrum analysis; Studies; 振动; 氧合血红蛋白; 激活作用; 肩关节; 训练; 辅助运动区; 运动皮层; 近红外光谱技术; United States > US; shoulder vibration exercise; flexible pole; functional near infrared spectroscopy; nerve regeneration; neural regeneration; cortical activation
• ISSN: 1673-5374; 1876-7958
• DOI: 10.4103/1673-5374.213549

To date, the cortical effect of exercise has not been fully elucidated. Using the functional near infrared spectroscopy, we attempted to compare the cortical effect between shoulder vibration exercise and shoulder simple exercise. Eight healthy subjects were recruited for this study. Two different exercise tasks（shoulder vibration exercise using the flexible pole and shoulder simple exercise） were performed using a block paradigm. We measured the values of oxygenated hemoglobin in the four regions of interest： the primary sensory-motor cortex（SM1 total, arm somatotopy, and leg and trunk somatotopy）, the premotor cortex, the supplementary motor area, and the prefrontal cortex. During shoulder vibration exercise and shoulder simple exercise, cortical activation was observed in SM1（total, arm somatotopy, and leg and trunk somatotopy）, premotor cortex, supplementary motor area, and prefrontal cortex. Higher oxygenated hemoglobin values were also observed in the areas of arm somatotopy of SM1 compared with those of other regions of interest. However, no significant difference in the arm somatotopy of SM1 was observed between the two exercises. By contrast, in the leg and trunk somatotopy of SM1, shoulder vibration exercise led to a significantly higher oxy-hemoglobin value than shoulder simple exercise. These two exercises may result in cortical activation effects for the motor areas relevant to the shoulder exercise, especially in the arm somatotopy of SM1. However, shoulder vibration exercise has an additional cortical activation effect for the leg and trunk somatotopy of SM1.