OBJECTIVES  The aim of this study was to determine the mean carpal extension angles in dogs participating in the A-frame and hurdle jumps, and to determine if the use of a carpal brace changed the carpal extension angle. STUDY DESIGN  Data from 13 healthy agility dogs were included. Approximately 1 cm square adhesive tape markers placed on both forelimbs served as anatomic landmarks for carpal angle measurement. Each dog was filmed landing after jumping over a bar and exiting the A-frame. Five valid trials on each obstacle were collected. The carpal braces were then applied and the dogs were allowed to navigate obstacles for 10 minutes. Once acclimated to the brace, an additional five valid trials were collected. Carpal extension was measured from the videos collected using a video analysis software. RESULTS  Without the carpal brace, the mean carpal extension angles ± standard deviations in dogs participating in the A-frame and hurdle jumps were 124.7 ± 11.9 degrees and 123.3 ± 6.3 degrees, respectively. With the carpal brace, the mean carpal extension angles ± standard deviations were 129.1 ± 11.4 degrees and 125.3 ± 7.3 for the A-frame and hurdle jumps, respectively. There was no clinically significant reduction as defined (>10 degrees) in carpal extension measurements with and without the brace. CLINICAL SIGNIFICANCE  The brace used in this study did not show a clinically significant reduction in carpal extension. However, multiple avenues for future research have been identified using these data.

中文翻译：

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退出A型架和跨栏跳跃的敏捷犬的腕骨伸展角度。

目的本研究的目的是确定参加A型架和跨栏跳跃的狗的平均腕伸角度，并确定使用腕托是否改变了腕伸角度。研究设计包括来自13只健康敏捷犬的数据。在两个前肢上放置大约1平方厘米的胶带标记，作为腕骨角度测量的解剖标志。跳过栏并退出A型架后，每只狗都被记录为着陆。对每个障碍物进行了五次有效试验。然后使用腕托，让狗在障碍物上行走10分钟。一旦适应了支架，就收集了另外五个有效试验。使用视频分析软件从收集的视频中测量腕骨伸展。结果如果没有腕托，参加A型架和跨栏跳跃的狗的平均腕掌伸展角±标准偏差分别为124.7±11.9度和123.3±6.3度。使用腕托，A形和跨栏跳跃的平均腕部伸展角度±标准偏差分别为129.1±11.4度和125.3±7.3。在有和没有支架的情况下，腕部伸展测量均没有临床上定义的明显减少（> 10度）。临床意义本研究中使用的支架未显示出腕骨伸展的临床显着减少。但是，使用这些数据已经确定了未来研究的多种途径。使用腕托，A形和跨栏跳跃的平均腕部伸展角度±标准偏差分别为129.1±11.4度和125.3±7.3。在有和没有支架的情况下，腕部伸展测量均没有临床上定义的明显减少（> 10度）。临床意义本研究中使用的支架未显示出腕骨伸展的临床显着减少。但是，使用这些数据已经确定了未来研究的多种途径。使用腕托，A形和跨栏跳跃的平均腕部伸展角度±标准偏差分别为129.1±11.4度和125.3±7.3。在有和没有支架的情况下，腕部伸展测量均没有临床上定义的明显减少（> 10度）。临床意义本研究中使用的支架未显示出腕骨伸展的临床显着减少。但是，使用这些数据已经确定了未来研究的多种途径。临床意义本研究中使用的支架未显示出腕骨伸展的临床显着减少。但是，使用这些数据已经确定了未来研究的多种途径。临床意义本研究中使用的支架未显示出腕骨伸展的临床显着减少。但是，使用这些数据已经确定了未来研究的多种途径。