| 摘要: |
| ［摘要］ 目的 研究新型肌肉硬度评估系统（MyotonPRO）量化肱二头肌不同收缩状态下张力变化。方法 经过培训的评估人员A、B采用MyotonPRO评估系统分别对11名受试者进行肱二头肌应对评估。测试者A、B分别在放松体位及50%最大力收缩状态下进行评估。对所得数据进行测试者间信度分析，计算最小可检测变化值（MDC）；并对比放松体位与50%最大力收缩状态下肱二头肌硬度的差异性。结果 测试者A、B采用MyotonPRO评估系统测量患者放松体位下肱二头肌硬度的信度为好（ICC=0.86），MDC为13.33 N/m。肱二头肌在放松状态下与50%最大力收缩状态下硬度分别为186.21 N/m和472.54 N/m（P<0.05）。结论 MyotonPRO评估系统评估肱二头肌有较好的测试者间信度，且可以用来检测在放松状态下与50%最大力收缩状态下的肱二头肌硬度的差异。 |
| 关键词: 肌肉检测仪 肱二头肌 硬度 |
| DOI：10.3969/j.issn.1674-3806.2020.07.04 |
| 分类号:R 322.7 |
| 基金项目: |
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| Quantification of the changes of the tension of biceps brachii muscle under different contractile conditions using a new muscle stiffness assessment system |
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ZANG Xin-yu, LI Ya-peng, YANG Xiao-xiao, et al.
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Rehabilitation Department, Luoyang Orthopedic-Traumatological Hospital of Henan Province(Henan Provincial Orthopedic Hospital), Luoyang 471000, China
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| Abstract: |
| ［Abstract］ Objective To study the quantification of the changes of the tension of biceps brachii muscle under different contractile conditions using a new muscle stiffness assessment system(MyotonPRO). Methods The trained assessors A and B used the assesment system MyotonPRO to evaluate the biceps response in 11 subjects. The assessor A assessed the results in a relaxed position of the biceps brachii muscle and the assessor B assessed the results under the condition of 50% maximum force contraction. The reliability analysis between the two assessors was performed on the obtained data to calculate the minimum detectable change(MDC). The difference of biceps brachii muscle stiffness measured in a relaxed position and under the condition of 50% maximal contractile force was compared. Results The inter-rater reliability of the biceps brachii muscle stiffness of the patients assessed by the assessors A and B using the assessment system MyotonPRO in a relaxed position of the biceps brachii muscle was good(ICC=0.86), with MDC being 13.33 N/m. The biceps brachii muscle stiffness was 186.21 N/m in a relaxed position of the biceps brachii muscle and 472.54 N/m under the condition of 50% maximum force of contraction(P<0.05). Conclusion The assessment system MyotonPRO has a good inter-rater reliability in the evaluation of biceps brachii muscle stiffness, and can be used to detect the difference between the stiffness of biceps brachii in the state of relaxation and that in the state of 50% maximum force of contraction. |
| Key words: Muscle detector Biceps brachii muscle Stiffness |
