Regional phase angle, not whole-body, is augmented in response to pre-season in professional soccer players.

IF 1.9 3区医学 Q2 SPORT SCIENCES

Research in Sports Medicine Pub Date : 2023-07-01 Epub Date: 2022-03-28 DOI:10.1080/15438627.2022.2052069

Renêe de Caldas Honorato, Alex Soares Marreiros Ferraz, Witalo Kassiano, Priscila Custódio Martins, Diego Augusto Santos Silva, Vânia Marilande Ceccatto

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引用次数: 4

Abstract

The objective of this article was to assess the effects of six-week pre-season training on whole-body and regional bioelectrical impedance analysis (BIA)-derived parameters, body composition, power, and aerobic performance in professional soccer players. Ten professional soccer athletes participated in the present study. Whole-body and regional hamstrings BIA-derived parameters [resistance, reactance, impedance, phase angle (PhA)], body composition, total body water (TBW), intracellular (ICW), and extracellular (ECW) were measured before, at mid-point, and after sixth week of the pre-season. Power (countermovement jump and squat jump) and aerobic capacity (Yo-Yo test) were measured before and after pre-season. There was a significant increase in the regional PhA (+13.9%) but not in the whole-body. There was a reduction in fat mass (-4.1%), an increase in fat-free mass (+1.7%), TBW (+8.3%), ICW (+8.8%), and ECW (+7.6%), as well as an increase in jump height (+11.0%) and distance covered in the Yo-Yo test (+34.7%). From our results, it is possible to suggest that pre-season training can induce an increase in hamstring PhA as well as body recomposition and improvement of physical fitness in professional soccer players.

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在职业足球运动员的季前赛中，区域相位角（而不是全身相位角）得到了增强。

本文的目的是评估为期六周的季前训练对职业足球运动员全身和区域生物电阻抗分析（BIA）得出的参数、身体成分、力量和有氧表现的影响。10名职业足球运动员参与了本研究。在季前赛的第六周之前、中期和之后测量全身和区域仓鼠的BIA衍生参数[电阻、电抗、阻抗、相位角（PhA）]、身体成分、全身水（TBW）、细胞内（ICW）和细胞外（ECW）。在季前赛前后测量力量（反跳和深蹲）和有氧能力（Yo-Yo测试）。区域PhA显著增加（+13.9%），但全身没有。在Yo-Yo测试中，脂肪量减少（-4.1%），无脂肪量增加（+1.7%），TBW增加（+8.3%），ICW增加（-8.8%），ECW增加（+7.6%），跳跃高度增加（+111.0%），距离增加（+34.7%），可以认为季前训练可以提高职业足球运动员的腿筋PhA以及身体重组和身体素质的提高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Research in Sports Medicine SPORT SCIENCES-

CiteScore

6.40

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Research in Sports Medicine is a broad journal that aims to bridge the gap between all professionals in the fields of sports medicine. The journal serves an international audience and is of interest to professionals worldwide. The journal covers major aspects of sports medicine and sports science - prevention, management, and rehabilitation of sports, exercise and physical activity related injuries. The journal publishes original research utilizing a wide range of techniques and approaches, reviews, commentaries and short communications.