Department of Physiotherapy, Faculty of Physiotherapy, University of Valencia, Valencia, Spain.
School of Allied Health Professions, Keele University, Staffordshire, United Kingdom.
Medicine (Baltimore). 2023 Aug 4;102(31):e34626. doi: 10.1097/MD.0000000000034626.
Physiotherapy protocols based on high-intensity interval training (HIIT) or eccentric hamstring exercises like Nordic Curl (NC) have been scarcely studied in futsal players. The objective of this study was to compare the effectiveness of a HIIT combined with an NC exercise program versus a HIIT-only program in futsal players.
Twenty-one futsal players were divided into (1) HIIT + NC group (n = 11, mean age = 21.55 [4.25]); and (2) HIIT group (n = 10, mean age = 20.90 [1.29]). The HIIT + NC group performed a HIIT circuit combined with 3 sets of 10 NC repetitions for 4 weeks, while the HIIT group performed the same protocol without NC exercise. Body mass index, intermittent work performance, vertical jump performance without and with arms, isometric strength of quadriceps and hamstrings, and the isometric hamstrings/quadriceps (H/Q) ratio, were assessed before and after the interventions.
The HIIT + NC group and the HIIT group showed a significant improvement in intermittent work performance after the intervention (P = .04 and P = .01, respectively). Also, both groups showed a trend of increasing quadriceps and hamstring isometric strength, although no significant changes were found (P > .05). In addition, neither the HIIT + NC protocol nor the HIIT protocol was sufficient to yield changes in body mass index nor to improve the vertical jump performance (P > .05).
Both an isolated HIIT protocol and HIIT in combination with NC exercise improved intermittent work performance in futsal players. The present study's findings may guide futsal players' physical preparation and injury prevention programs.
高强度间歇训练（HIIT）或类似于北欧卷（NC）的离心腘绳肌练习的物理治疗方案在五人制足球运动员中研究甚少。本研究的目的是比较 HIIT 结合 NC 运动方案与单纯 HIIT 方案对五人制足球运动员的效果。
21 名五人制足球运动员被分为（1）HIIT+NC 组（n = 11，平均年龄 21.55 [4.25]）；和（2）HIIT 组（n = 10，平均年龄 20.90 [1.29]）。HIIT+NC 组进行 HIIT 循环训练，并结合 3 组 10 次 NC 重复练习，持续 4 周，而 HIIT 组则进行相同的方案，但不进行 NC 运动。在干预前后评估了体重指数、间歇性工作表现、无臂和有臂垂直跳跃表现、股四头肌和腘绳肌等长力量以及等长腘绳肌/股四头肌（H/Q）比值。
HIIT+NC 组和 HIIT 组在干预后间歇性工作表现均有显著改善（P =.04 和 P =.01）。此外，两组的股四头肌和腘绳肌等长力量均有增加趋势，但无显著变化（P >.05）。此外，HIIT+NC 方案和 HIIT 方案都不足以改变体重指数或提高垂直跳跃表现（P >.05）。
单纯 HIIT 方案和 HIIT 结合 NC 运动均可改善五人制足球运动员的间歇性工作表现。本研究结果可为五人制足球运动员的体能准备和伤病预防方案提供指导。
