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Assessment of Countermovement Jump Performance in First Position (Sauté) in Healthy Adults

机译：在健康成年人中的第一位置（炒）对逆口跳跃性能进行评估

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Background: Prior studies have examined muscle power via the countermovement jump (CMJ). Studies to date have examined neither the reliability nor the construct validity of the ballet first position CMJ (hips in lateral rotation, toes facing away from one another, legs straight) as a measure of power. Hypotheses: There would be (1) good interrater reliability in the visual assessment of the best-quality first position CMJ (κ ≥ 0.60), (2) good test-retest reliability in the height of the first position CMJ of good quality (intraclass correlation coefficient [ICC] ≥ 0.80), and (3) a significant relationship between isokinetic torque of the quadriceps femoris and first position CMJ height ( r ≥ 0.40). Study Design: Correlational study. Level of Evidence: Level 3. Methods: A convenience sample of 39 healthy young adults who reported moderate activity levels participated in a warm-up and 2 sessions of 6 jumps. Quadriceps femoris isokinetic torque was measured in the first session. Results: Significant agreement was found within the same day for the best-quality first position CMJ (κ = 0.81), and in the highest, best-quality first position CMJ between days (ICC_(2,1)= 0.88). The highest, best-quality first position CMJ, when solving for a single trial, was comparable to the average of 2 trials (single trial: ICC_(2,1)= 0.96 vs average of 2 trials: ICC_(2,k)= 0.98). There was a good relationship between quadriceps femoris isokinetic strength and first position CMJ height (Pearson r = 0.69 and P < 0.001 at 60 deg/s; r = 0.64 and P < 0.001 at 180 deg/s; r = 0.65 and P < 0.001 at 300 deg/s). Conclusion: Visual video movement analysis has good to excellent interrater agreement and test-retest reliability. Selecting the single highest jump of good quality is acceptable. The first position CMJ is a measure of power. Clinical Relevance: Video analysis of the single highest first position CMJ of good quality is an acceptable method of assessing movement quality.
机译：背景：先前的研究通过对策跳转（CMJ）检查了肌肉力量。迄今为止的研究既不检查芭蕾型第一位置CMJ的可靠性也不是芭蕾舞型第一位置CMJ（横向旋转的臀部，脚趾彼此面对的臀部，腿部直线）作为功率的量度。假设：将有（1）良好的Interray可靠性在视觉评估中最佳质量第一位​​置CMJ（κ≥0.60），（2）良好的测试 - 重度可靠性在高度的高质量高质量（颅内）相关系数[ICC]≥0.80），以及（3）Quadriceps股骨的等内扭矩与第一位置CMJ高度（R≥0.40）之间的显着关系。研究设计：相关研究。证据级别：3级。方法：39个健康年轻人的便利样本报告的中度活动水平参与了6次跳跃的预热和2次。在第一届会议中测量了QuadRiceps股骨同种同位素扭矩。结果：在最佳质量第一位​​置CMJ（κ= 0.81）的同一天内发现了重要的协议，以及在几天（ICC_（2,1）= 0.88之间的最佳质量第一位​​置CMJ的最佳质量最佳的第一位置。在解决单一试验时，最高最优质的第一位置CMJ与2试验的平均值相当（单试：ICC_（2,1）= 0.96 Vs平均值2试验：ICC_（2，K）= 0.98）。 Quadriceps股骨同源强度和第一位置CMJ高度之间存在良好的关系（Pearson r = 0.69和P <0.001，在60°/ s; r = 0.64和p <0.001，在180 deg / s; r = 0.65和p <0.001在300 deg / s）。结论：视觉视频运动分析对优异的Interrade Angly和Test-Restest可靠性良好。选择良好质量的单一最高跳跃是可接受的。第一位置CMJ是一种功率的量度。临床相关性：对良好质量的单一最高第一位置CMJ的视频分析是评估运动质量的可接受方法。

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