Śliwowski Robert, Grygorowicz Monika, Wieczorek Andrzej, Jadczak Łukasz
Department of Team Sports Games of the University School of Physical Education in Poznań, Poznań, Poland -
Rehasport Clinic FIFA Medical Centre of Excellence, Research and Development Department, Poznań, Poland.
J Sports Med Phys Fitness. 2018 Sep;58(9):1226-1233. doi: 10.23736/S0022-4707.17.07289-9. Epub 2017 Jun 21.
The aim of this study was to investigate the relationship between vertical jumping performance, isokinetic strength of knee extensors/flexors, and postural priority and to describe a multiple regression model that accounts for the effects of selected parameters of isokinetic strength and postural priority on vertical jumping performance.
Thirty-one professional male soccer players, aged from 17 to 20 years, participated in this study (age, mean±SD: 18.6±1.26 years; height: 1.78±0.74 m and weight: 73.1±6.77 kg). The correlations between isokinetic knee strength, jumping performance, and postural control were evaluated using the Pearson correlation coefficient. A linear regression model was used to evaluate the effect of hamstrings and quadriceps peak torque of both legs at 60º·s-1, total work of both legs at 240º·s-1, and postural priority on jumping performance.
The peak torque of right leg knee flexor (quadriceps) muscles, evaluated at 60º·s-1 speed, showed correlations with counter movement jump, 30 second jumping and squat jump (P=0.005, P=0.003, and P=0.007, respectively). We also observed a strong relationship between counter movement jump and 30 second jumping and peak torque of left leg evaluated at the same speed of 60º·s-1 (P=0.26 and P=0.22, respectively). No significant correlations were found between any of the jumping tests and peak torque of knee extensors of both legs at 60º·s-1. For the 30 second jumping test, it appears that jumping endurance has a significant relationship with total work of knee flexors for right and left legs at 240º·s-1.
The results of this study demonstrate practical implications for soccer performance, but further exploration is required.
本研究旨在探讨垂直跳跃成绩、膝关节伸肌/屈肌等速肌力与姿势优先级之间的关系，并描述一个多元回归模型，该模型考虑了等速肌力和姿势优先级的选定参数对垂直跳跃成绩的影响。
31名年龄在17至20岁之间的职业男性足球运动员参与了本研究（年龄，均值±标准差：18.6±1.26岁；身高：1.78±0.74米，体重：73.1±6.77千克）。使用Pearson相关系数评估等速膝关节力量、跳跃成绩和姿势控制之间的相关性。采用线性回归模型评估双腿在60°·s⁻¹时的腘绳肌和股四头肌峰值扭矩、双腿在240°·s⁻¹时的总功以及姿势优先级对跳跃成绩的影响。
在60°·s⁻¹速度下评估的右腿膝关节屈肌（股四头肌）肌肉峰值扭矩与反向移动跳跃、30秒跳跃和深蹲跳均呈相关性（分别为P = 0.005、P = 0.003和P = 0.007）。我们还观察到反向移动跳跃与30秒跳跃以及在相同的60°·s⁻¹速度下评估的左腿峰值扭矩之间存在密切关系（分别为P = 0.26和P = 0.22）。在60°·s⁻¹时，任何跳跃测试与双腿膝关节伸肌峰值扭矩之间均未发现显著相关性。对于30秒跳跃测试，似乎跳跃耐力与双腿在240°·s⁻¹时膝关节屈肌的总功存在显著关系。
本研究结果对足球表现具有实际意义，但仍需进一步探索。
