Department of Health, Nutrition and Exercise Physiology, Parma Calcio 1913, Parma, Italy.
Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.
J Sports Med Phys Fitness. 2022 Aug;62(8):1015-1022. doi: 10.23736/S0022-4707.21.12911-1. Epub 2021 Sep 21.
In soccer, a better understanding of the bioimpedance parameters with physical performance may be useful to efficiently monitor and interpret players' performance variation throughout a certain period of the season. Therefore, this study aimed to examine the association between phase angle (PhA) and arms and legs lean soft tissue (ALST and LLST) with physical performance in young elite soccer players.
Fifteen young male elite soccer players (age: 14.2±1.2 years, BMI=20.51±1.38 kg/m) participated in this investigation. Raw bioimpedance parameters (reactance, resistance, and PhA) were obtained by a bioelectrical impedance analysis (BIA) device. Then, ALST and LLST were estimated. All players underwent a physical testing battery including countermovement jump (CMJ), 10-minute and 20-minute sprint, and Yo-Yo Intermittent Recovery Test level 1 (YoYo IRTL1) in the domains of anaerobic and aerobic performance, respectively.
The results showed that LST (total, arms and legs) positively correlated with CMJ (0.64<r<0.69; P<0.001) and negatively correlated with 10-m (-0.59<r<-0.63; P<0.05) and 20-minute sprint (-0.67<r<-0.73; P<0.001), while PhA positively correlated with CMJ (r=0.57; P<0.05) and negatively correlated (r=-0.54; P<0.05) only with 20-minute sprint. No significant association was found between the BIA-related parameters (PhA and LST) and Yo-Yo IRT level 1.
The present findings highlight the existing association of PhA and LST with jumping and sprinting performance in young elite soccer players. This result supports the use of BIA-related measures as a simple and practical approach to monitoring anaerobic performance changes, rather than aerobic, over time throughout the season.
在足球中，更好地理解生物阻抗参数与身体表现之间的关系，可能有助于有效地监测和解释球员在整个赛季中的表现变化。因此，本研究旨在探讨相位角（PhA）和四肢瘦体组织（ALST 和 LLST）与年轻精英足球运动员身体表现之间的关系。
15 名年轻男性精英足球运动员（年龄：14.2±1.2 岁，BMI=20.51±1.38kg/m²）参与了这项研究。通过生物电阻抗分析（BIA）设备获得原始生物阻抗参数（电抗、电阻和 PhA）。然后，估计 ALST 和 LLST。所有运动员都进行了身体测试，包括反跳（CMJ）、10 分钟和 20 分钟冲刺以及 Yo-Yo 间歇性恢复测试 1 级（YoYo IRTL1），分别在无氧和有氧表现领域。
结果表明，LST（总、臂和腿）与 CMJ 呈正相关（0.64<r<0.69；P<0.001），与 10 米跑（-0.59<r<-0.63；P<0.05）和 20 分钟冲刺（-0.67<r<-0.73；P<0.001）呈负相关，而 PhA 与 CMJ 呈正相关（r=0.57；P<0.05），仅与 20 分钟冲刺呈负相关（r=-0.54；P<0.05）。BIA 相关参数（PhA 和 LST）与 Yo-Yo IRT 1 级之间没有显著关联。
本研究结果强调了 PhA 和 LST 与年轻精英足球运动员跳跃和冲刺表现之间的现有关系。这一结果支持使用 BIA 相关指标作为一种简单实用的方法，监测整个赛季中无氧表现的变化，而不是有氧表现的变化。
