Ultrasonography of the Patellar Tendon and Achilles Tendon in Children Adolescent and Adults
研究概览
详细说明
Studies showed that the probability of tendon abnormalities is higher in obese subjects compared to normal weight peer. Adiposity has been recognized as a risk factor for alterations in load- bearing tendons; and, different impact of loading exercises on tendon structure has been reported for obese individuals compared to normal weight individuals. The aim of the current study is to evaluate the Patellar tendon and Achilles tendon structures among children, adolescents and adults with different weight status. That in order to improve our understanding on the impact of acute and overused loads on tendon structure; and, in developing strategies to reduce tendon's injuries following physical exercises.
Tendon structure would be evaluated with UTC-imaging ultrasound device. UTC imaging allows for three-dimensional imaging of the tendon, semi- quantification of structure, and calculation of tendon dimensions. The resultant UTC analysis quantify the tendon into four echo types (I-IV) based on the stability of pixel brightness over contiguous images allowing inferences to be made on the alignment of tendon bundles. Briefly, echo types I and II correspond with relatively high stability in gray-scale pixel brightness over contiguous images due to one resulting US signal transmission. These echo types correspond with aligned fibrillar structure (AFS) within the tendon. Echo types III and IV are generated by multiple signal transmission that interfere as a consequence of multiple interfaces. These echo types represent a disorganized amorphous fibrillar structure that has non parallel fiber arrangement. For this study, the relative percentage and (muscle cross section area (mCSA) of these parameters were the main outcomes investigated. A linear-array US transducer (SmartProbe, A 10- megahertz (MHz) linear-array transducer, USA) mounted within a customized tracking device with motor drive and built-in acoustic stand off pad (UTC Tracker, UTC Imaging, Netherlands) was placed on the skin, perpendicular to the long axis of the tendon (Achilles or patellar), ensuring that the calcaneus or inferior pole of the patella was visible. Coupling gel was applied between the transducer, standoff pad, and skin to ensure maximum contact. Once a clear transverse image of the tendon and bony landmark was established, the motor drive automatically moved the transducer over the length of the tendon capturing a transverse grayscale US image every 0.2 mm over a distance of 12 cm. By compounding these images, a gray-scale US image data block is rendered that allows the tendon to be viewed in three planes: transverse, sagittal, and coronal (UTC2010, UTC Imaging). From this data block, each tendon was classified as either normal or pathological.
Each participant would be measured at both Achilles tendons and both Patellar tendons (total time 10min) while prone position (for the Achilles tendon) and in sitting position (for Patellar tendon). Each screening is for 45sec.
- Participants in different ages and different weight status would be measured for tendon structure
- Tendon structure would be evaluated following single and multiple (up to 12 weeks) aerobic and anaerobic exercises.
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
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Kfar-Saba、以色列、44281
- 'Meir children's sport and health center'
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria: - participants should be between the ages of 6 to 30 years; normal-weight, over-weight and obese participants.
Exclusion Criteria:
- participants that had orthopedic surgery or professional athletes.
学习计划
研究是如何设计的?
设计细节
- 主要用途:诊断
- 分配:非随机化
- 介入模型:单组作业
- 屏蔽:无(打开标签)
武器和干预
参与者组/臂 |
干预/治疗 |
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无干预:Evaluating Tendons Structures
Ultrasound measurements of Patellar Tendon and Achilles Tendon Structures
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有源比较器:Impact of physical activity on tendons
Ultrasound measurements of Patellar Tendon and Achilles Tendon Structures following different types and different intensity of physical activity
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Single vs. multiple (up to 12 weeks) of different types of physical exercises (aerobic vs. anaerobic activities).
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
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Ultrasound tissue characterization
大体时间:10min
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Based on the stability of echo-pattern the device can discriminate 4 different echo-types of tendon specimen
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10min
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
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Ultrasound 3-D visualization of tendon structure
大体时间:10min
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measuring the total volume of the tendon; anterior-posterior and medial-lateral diameters
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10min
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合作者和调查者
调查人员
- 首席研究员:Dan Nemet, Prof.、Meir Medical Center
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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