Department of Biomechanics, Faculty of Physical Therapy, Cairo University, Egypt.
Department of Health and Rehabilitation Sciences, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, Kingdom of Saudi Arabia.
J Musculoskelet Neuronal Interact. 2021 Jun 1;21(2):237-246.
The study aimed to determine the effect of adding a school-based plyometric training program (PMT) to physical education (PE) sessions on the strength, balance, and flexibility in primary school girls.
Students from grades 3-6 were randomized equally to a plyometric or control group. In the control group, students took their regular PE classes twice a week. In the plyometric group, students performed PMT twice a week during the initial 20 minutes of every PE session. The Lido Linea closed kinetic chain isokinetic dynamometer, Star excursion balance test (SEBT), and sit-and-reach test were used to assess muscle strength, balance, and flexibility, respectively, before and after nine weeks of training.
The improvement in extension peak force (p=0.04) and extension total work (p<0.001) was more prevalent in the PMT group than in the control group. SEBT scores had improved significantly (p<0.05) for all directions in the PMT group, except in the anterior direction, which was highly significant (p<0.001). Hamstring and lower back flexibility had improved more in the PMT group than in the control group (p<0.001).
Adding PMT to regular PE classes has a positive and notable effect on muscle strength, balance, and flexibility in primary school students.
本研究旨在确定在小学女生的体育课中加入基于学校的增强式训练计划（PMT）对其力量、平衡和灵活性的影响。
将 3 至 6 年级的学生随机均等分为增强式组和对照组。在对照组中，学生每周上两次常规体育课。在增强式组中，学生在每节体育课的最初 20 分钟内进行 PMT。使用 Lido Linea 闭链等速测力计、星形偏移平衡测试（SEBT）和坐立前伸测试分别在训练前和训练 9 周后评估肌肉力量、平衡和灵活性。
与对照组相比，增强式组的伸展峰值力量（p=0.04）和伸展总功（p<0.001）的改善更为明显。增强式组的 SEBT 评分在所有方向都有显著提高（p<0.05），除了前向，提高非常显著（p<0.001）。与对照组相比，增强式组的腘绳肌和下背部柔韧性的改善更为明显（p<0.001）。
在常规体育课中加入 PMT 对小学生的力量、平衡和灵活性有积极且显著的影响。
