Performance and Health Research Group for High Level Sports, GIRSANE, High Performance Center, Sant Cugat del Vallès, Spain.
J Strength Cond Res. 2011 Jun;25(6):1686-94. doi: 10.1519/JSC.0b013e3181db9f2e.
This is a longitudinal descriptive study whose purpose is to assess the physical state of male volleyball players competing at the international level, comparing their jump heights during 3 different seasons. National team sample relies upon trainer decisions, and it was different every season. There were 23, 15, and 13 players in the first, second, and third years, respectively. Subjects underwent a vertical test protocol consisting of rocket jump, squat jump (SJ), countermovement jump (CMJ), CMJ with arms (CMJa), and spike jump (DJb) at the preparation period of the national team season. In 2007, an extra evaluation was performed during the competitive period. A contact mat was used for the assessment. An increase of jump height was observed over the years, with SJ and DJb increasing significantly (FSJ = 5.4; FDJb = 4.7; p < 0.05). The elasticity index decreased significantly between 2007 and 2008 (FEI = 8.5; p < 0.05), whereas arm utilization index and approach index increased, but this increase was not statistically significant. A significant increase in SJ and DJb was also observed between the 2 tests performed in 2007, whereas a nonsignificant increase was observed for CMJ and CMJa. The results indicate a better performance of explosive strength, elastic-explosive strength, and reflex-elastic-explosive strength and a better use of arms during jumps.
这是一项纵向描述性研究，旨在评估参加国际比赛的男性排球运动员的身体状况，比较他们在 3 个不同赛季的跳跃高度。国家队样本依赖于教练的决定，而且每个赛季都不同。在第一年、第二年和第三年，分别有 23、15 和 13 名球员。受试者在国家队赛季的准备期间接受了垂直测试方案，包括火箭跳、深蹲跳（SJ）、反向跳（CMJ）、带臂 CMJ（CMJa）和扣球跳（DJb）。在 2007 年，在比赛期间进行了额外的评估。使用接触垫进行评估。观察到跳跃高度逐年增加，SJ 和 DJb 显著增加（FSJ=5.4；FDJb=4.7；p<0.05）。弹性指数在 2007 年和 2008 年之间显著下降（FEI=8.5；p<0.05），而手臂利用率指数和接近指数增加，但这增加没有统计学意义。2007 年进行的两次测试中，SJ 和 DJb 也观察到显著增加，而 CMJ 和 CMJa 则观察到非显著增加。结果表明，爆发力、弹性爆发力和反射弹性爆发力的表现更好，并且在跳跃过程中更好地利用了手臂。
