Quinzi Federico, Rosellini Gioele, Sbriccoli Paola
Department of Movement Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy.
J Strength Cond Res. 2022 May 1;36(5):1353-1359. doi: 10.1519/JSC.0000000000003653. Epub 2020 Oct 9.
Quinzi, F, Rosellini G, and Sbriccoli, P. Lower limb maximal power predicts punching speed in different static and dynamic attacking techniques in karate. J Strength Cond Res 36(5): 1353-1359, 2022-Punching performance of karate can be predicted from lower limb maximal power. However, this relationship was observed only in single actions starting from a static position, thus calling for an investigation on the applicability of this relationship to other conditions. This study aims at investigating whether the relationship between lower limb maximal power and punch speed holds true, not only for single actions, but also for a combination of upper limb techniques in static and dynamic conditions. Ten national-level karate athletes aged 22.3 ± 1.8 years were assessed for maximal power of upper and lower limbs during a bench press and a back squat, and for punching speed during 2 punching techniques (gyaku tsuki [GT]; kizami tsuki and gyaku tsuki [KG]) starting from a static (GTS; KGS) or a dynamic (GTD; KGD) condition. Pearson's correlations were obtained between upper and lower limb maximal relative power and punch speed across tasks and conditions. Significance level was set at p < 0.05. Significant correlations were observed between lower limb maximal relative power and punch speed for all tasks and conditions (r = 0.66-0.80; p = 0.005-0.037). The present results further our knowledge on the relationship between lower limb maximal power and punch speed showing that this relationship holds true also for combinations of punching techniques performed also in dynamic conditions. This information can be useful for karate trainers to predict the punching performance of their athletes using a simple test to assess maximal lower limb power.
昆齐、F、罗塞利尼、G和斯布里科利、P。下肢最大功率可预测空手道不同静态和动态攻击技术中的出拳速度。《力量与体能研究杂志》36(5): 1353 - 1359，2022年——空手道的出拳表现可由下肢最大功率预测。然而，这种关系仅在从静态开始的单一动作中观察到，因此需要研究这种关系在其他条件下的适用性。本研究旨在调查下肢最大功率与出拳速度之间的关系是否不仅适用于单一动作，也适用于静态和动态条件下上肢技术的组合。对10名年龄在22.3±1.8岁的国家级空手道运动员进行了评估，测量他们在卧推和后深蹲时上下肢的最大功率，以及在两种出拳技术（逆突[GT]；切上突和逆突[KG]）从静态（GTS；KGS）或动态（GTD；KGD）条件开始时的出拳速度。在所有任务和条件下，获得了上下肢最大相对功率与出拳速度之间的皮尔逊相关性。显著性水平设定为p < 0.05。在所有任务和条件下，观察到下肢最大相对功率与出拳速度之间存在显著相关性（r = 0.66 - 0.80；p = 0.005 - 0.037）。本研究结果进一步加深了我们对下肢最大功率与出拳速度之间关系的认识，表明这种关系在动态条件下执行的出拳技术组合中也成立。这些信息对于空手道教练来说可能有用，他们可以通过一个简单的测试来评估下肢最大功率，从而预测运动员的出拳表现。
