Zahn Danielle, Willardson Jeffrey M
Health and Human Performance Department, Montana State University Billings, Billings, Montana.
J Strength Cond Res. 2025 Jun 1;39(6):705-710. doi: 10.1519/JSC.0000000000005112.
Zahn, D and Willardson, JM. An examination of the relationship between single leg jump and balance performance in female collegiate basketball players. J Strength Cond Res 39(6): 705-710, 2025-The purpose of this study was to examine relationships between different types of single leg jumps and components of the Y-Balance Test (YBT) in a convenience sample of female collegiate basketball players. Data collection involved assessment of players in the single leg vertical jump, single leg broad jump, and the YBT. These 3 tests were performed in random order and with the order of legs tested also randomized. Independent t-tests were conducted to assess symmetry in balance and jump performance between legs and Pearson correlations to assess relationships between tests (p ≤ 0.05). For all tests, there were no significant differences between legs, but multiple significant correlations were found between tests. Key findings included a significant (p = 0.046) and positive relationship (r = 0.584, r2 = 0.341) between the left leg vertical jump and YBT right leg posteromedial percent reach, while supported on the left leg, and reciprocally, a significant (p = 0.020) and positive relationship (r = 0.659, r2 = 0.434) between the right leg vertical jump and YBT left leg posteromedial percent reach, while supported on the right leg. Other key findings included significant and positive correlations between the right leg broad jump and right leg vertical jump (p = 0.034, r = 0.612, r2 = 0.375) and between the left leg broad jump and left leg vertical jump (p = 0.008, r = 0.719, r2 = 0.517). When considering that none of the players suffered a significant time-loss injury during the course of the season, the above results may suggest a benefit in seeking for symmetry in single leg vertical and broad jump and YBT performance as part of the strength and conditioning process. The mean values for the single leg vertical jump (left, 30.29 cm; right, 31.16 cm) and single leg broad jump (left, 168.60 cm; right, 163.85 cm) and the YBT percent reach values for the anterior (left, 67.17%; right 68.86%), posteromedial (left, 130.46%; right 128.23%), and posterolateral (left, 124.49%; right 127.35%) directions from the present study can be used by strength and conditioning coaches for comparative purposes in healthy samples of female collegiate basketball players.
扎恩，D和威拉德森，JM。女子大学篮球运动员单腿跳与平衡能力关系的研究。《力量与体能研究杂志》39(6):705 - 710，2025年——本研究的目的是在一组方便抽样的女子大学篮球运动员中，研究不同类型的单腿跳与Y平衡测试（YBT）各组成部分之间的关系。数据收集包括对运动员进行单腿垂直跳、单腿跳远和YBT测试。这三项测试以随机顺序进行，测试腿的顺序也随机化。采用独立t检验评估双腿之间平衡和跳跃表现的对称性，并采用皮尔逊相关分析评估测试之间的关系（p≤0.05）。对于所有测试，双腿之间均无显著差异，但测试之间发现了多个显著相关性。主要发现包括，在左腿支撑时，左腿垂直跳与YBT右腿后内侧百分比伸展之间存在显著（p = 0.046）正相关（r = 0.584，r2 = 0.341）；反之，在右腿支撑时，右腿垂直跳与YBT左腿后内侧百分比伸展之间存在显著（p = 0.020）正相关（r = 0.659，r2 = 0.434）。其他主要发现包括右腿跳远与右腿垂直跳之间（p = 0.034，r = 0.612，r2 = 0.375）以及左腿跳远与左腿垂直跳之间（p = 0.008，r = 0.719，r2 = 0.517）存在显著正相关。考虑到在赛季过程中没有运动员遭受严重的时间损失性损伤，上述结果可能表明，在力量和体能训练过程中，寻求单腿垂直跳、单腿跳远和YBT表现的对称性可能有益。本研究中，单腿垂直跳（左腿，30.29厘米；右腿，31.16厘米）、单腿跳远（左腿，168.60厘米；右腿，163.85厘米）以及YBT在前（左腿，67.17%；右腿，68.86%）、后内侧（左腿，130.46%；右腿，128.23%）和后外侧（左腿，124.49%；右腿，127.35%）方向的百分比伸展的平均值，可供力量和体能教练在健康的女子大学篮球运动员样本中用于比较目的。
