Department of Sport and Informatics, Section of Physical Education and Sport, Pablo de Olavide University, Sevilla, Spain.
Football Performance & Science Department, ASPIRE Academy, Doha, Qatar.
PLoS One. 2018 Oct 16;13(10):e0205332. doi: 10.1371/journal.pone.0205332. eCollection 2018.
The aim of this study was to describe the changes in body composition, strength and sprint performance in response to an entire competitive season of football training supplemented with 2 inertial eccentric-overload training sessions a week in young male professional soccer players. Whole body and regional composition (assessed using dual-energy X-ray absorptiometry), power output in half-squat and 40-m sprinting performance were evaluated in fourteen players. The eccentric-overload training consisted of training sessions a week of 1-2 sets of 10 exercises of upper-body and core (Day 1) and lower-body (Day 2), during the entire competitive season (27 weeks). Whole body fat mass decreased (-6.3 ± 3.6%, ES = -0.99 ± 0.54) substantially while lean mass increased (2.5 ± 0.8%, ES = 0.25 ± 0.09), with some regional differences. There was a substantial increase in half-squat power output (from 3% to 14%, ES from 0.45 to 1.73) and sprint performance (from 1.1% to 1.8%, ES from -0.33 to -0.44), however performance changes were not correlated with changes in body composition. A combined soccer and eccentric-overload training program was able to promote positive changes in body composition and physical factors relevant to both on-field performance and injury prevention in elite soccer players.
本研究旨在描述在整个足球赛季中接受补充每周 2 次惯性离心过载训练的情况下，年轻男性职业足球运动员的身体成分、力量和短跑表现的变化。通过双能 X 射线吸收法评估了 14 名运动员的全身和局部成分（评估）、半深蹲和 40 米短跑的功率输出。离心过载训练包括在整个竞争赛季（27 周）中每周进行 1-2 组 10 项上半身和核心（第 1 天）以及下半身（第 2 天）的训练。全身脂肪量大幅减少（-6.3 ± 3.6%，ES = -0.99 ± 0.54），而瘦体重增加（2.5 ± 0.8%，ES = 0.25 ± 0.09），存在一些局部差异。半深蹲功率输出（从 3%增加到 14%，ES 从 0.45 增加到 1.73）和短跑表现（从 1.1%增加到 1.8%，ES 从 -0.33 增加到 -0.44）有了实质性的提高，但这些性能变化与身体成分的变化无关。综合足球和离心过载训练方案能够促进身体成分和与场上表现和伤病预防相关的物理因素的积极变化，适合精英足球运动员。
