Berriel Guilherme, Silveira Cardoso Ananda, Cavagni Maria Eduarda, Kruel Luiz Fernando, Peyré-Tartaruga Leonardo Alexandre
School of Physical Education, Physiotherapy and Dance Universidade Federal do Rio Grande do Sul.
Int J Sports Phys Ther. 2025 Aug 1;20(8):1152-1159. doi: 10.26603/001c.141857. eCollection 2025.
Although the stretch-shortening cycle (SSC) influence is well determined on jump performance in adult professional volleyball, the influence of this mechanism on jump in volleyball players in the development phase is unknown. The aim of this study was to evaluate anthropometric profile, jump performance, stiffness and pre-stretch augmentation percentage (PSAP) in Brazilian under-19 volleyball team athletes.
Twenty-nine male volleyball athletes who were members of the Brazilian under-19 volleyball team were recruited. Squat jump (SJ) and countermovement jump (CMJ) were assessed followed the protocol suggested by Bosco et al. on a contact mat, along with the determination of lower limb stiffness and PSAP. The data were evaluated using descriptive statistics.
The subjects were 18.2±0.5 years (Body mass: 87.59±10.93 kg, height: 195.75±9.21 cm.) The mean results included stiffness 0.43±0.15 N.m-1.kg-1, CMJ height 39.9±5.21 cm, SJ height 41.99±5.7 cm, and PSAP 5.22±3.18 %.
The anthropometric profile results highlight the inclusion of athletes of large stature for volleyball, and that SJ and CMJ values are still below those found in adult athletes.
Brazilian athletes from the under-19 national team show potential for improvement in the efficiency of the stretch-shortening cycle (SSC), as indicated by the PSAP values.
3b.
尽管拉伸-缩短周期（SSC）对成年职业排球运动员跳跃表现的影响已得到充分确定，但该机制对处于发育阶段的排球运动员跳跃的影响尚不清楚。本研究的目的是评估巴西19岁以下排球队运动员的身体形态、跳跃表现、刚度和预拉伸增强百分比（PSAP）。
招募了29名巴西19岁以下排球队的男性排球运动员。按照博斯科等人建议的方案，在接触垫上评估深蹲跳（SJ）和反向移动跳（CMJ），同时测定下肢刚度和PSAP。使用描述性统计对数据进行评估。
受试者年龄为18.2±0.5岁（体重：87.59±10.93千克，身高：195.75±9.21厘米）。平均结果包括刚度0.43±0.15牛·米-1·千克-1、CMJ高度39.9±5.21厘米、SJ高度41.99±5.7厘米和PSAP 5.22±3.18%。
身体形态结果突出表明排球项目纳入了身材高大的运动员，并且SJ和CMJ值仍低于成年运动员。
如PSAP值所示，巴西19岁以下国家队运动员在拉伸-缩短周期（SSC）效率方面有提升潜力。
3b。
