| Project/Area Number |
24700519
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Rehabilitation science/Welfare engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
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| Keywords | 肩甲骨周囲筋 / 超音波 / 表面筋電図 / 筋厚 / 加齢 / 肩関節 / 筋活動 / 腱板断裂 / 超音波診断装置 |
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| Research Abstract |
The purpose of this study was to determine age-related changes of scapula muscles using ultrasound and surface electromyography. Fifty eight subjects (20's to 30's: 18 people, 40's to 50's: 13 people, 60's to 70's: 27 people) were recruited in this study. Thicknesses and activities of the upper and lower trapezius, serratus anterior, and middle deltoid muscles were measured with ultrasonography and surface electromyography, respectively. In scapula muscles, only lower trapezius has a tendency to decrease in muscle thickness. In muscle activity, there was no difference among three groups. These findings suggested that only lower trapezius might become weaken selectively due to reduction of muscle volume with aging, although the function of the muscle would not change.
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