Alternative Countermovement-Jump Analysis to Quantify Acute Neuromuscular Fatigue
Alternative Countermovement-Jump Analysis to Quantify Acute Neuromuscular Fatigue
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DOI：
10.1123/ijspp.2013-0413
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发表时间：
2015-01-01
影响因子：
3.3
通讯作者：
Sleivert, Gord
中科院分区：
文献类型：
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作者：
Gathercole, Rob;Sporer, Ben;Sleivert, Gord
目的：目的：研究疲劳运动后反向运动跳跃（CMJ）试验的可靠性和变化幅度，并确定其是否适用于疲劳引起的神经肌肉（NM）功能变化的评估。第二个目的是检查一组替代CMJ变量（CMJ-ALT）相关CMJ力学方法的有用性：11名男性大学水平的团队运动员进行了6 CMJ试验6次。共检查了22个变量，其中16个典型变量（CMJ-TYP）和6个CMJ-ALT。在参与者的前3次访视中检查CMJ再现性（变异系数; CV）。接下来的3次访视（运动后0、24和72小时）遵循疲劳高强度快速运动跑步方案。通过效应量（ES）和日间CV的比较，检查CMJ性能的有意义差异。结果：大多数CMJ变量表现为日内（n = 20）和日间。（n = 21）
Purpose: To examine the reliability and magnitude of change after fatiguing exercise in the countermovement-jump (CMJ) test and determine its suitability for the assessment of fatigue-induced changes in neuromuscular (NM) function. A secondary aim was to examine the usefulness of a set of alternative CMJ variables (CMJ-ALT) related to CMJ mechanics Methods: Eleven male college-level team-sport athletes performed 6 CMJ trials on 6 occasions. A total of 22 variables, 16 typical (CMJ-TYP) and 6 CMJ-ALT, were examined. CMJ reproducibility (coefficient of variation; CV) was examined on participants' first 3 visits. The next 3 visits (at 0, 24, and 72 h postexercise) followed a fatiguing high-intensity intermittent-exercise running protocol. Meaningful differences in CMJ performance were examined through effect sizes (ES) and comparisons to interday CV. Results: Most CMJ variables exhibited intraday (n = 20) and interday. (n = 21) CVs of