School of Physical Education, Soochow University, Suzhou, China.
Front Public Health. 2022 Aug 30;10:949130. doi: 10.3389/fpubh.2022.949130. eCollection 2022.
This study is intended for exploring the effects of the physical activity combined with extra ciliary-muscle training with different frequencies on children's kinetic visual acuity and uncorrected distance visual acuity, and eventually figuring out the optimal frequency of ciliary-muscle training for each physical education class. To do the present research, A total of 160 students aged 10-11 from a school in Suzhou (a major city located in southeastern Jiangsu Province, East China) were randomly selected and divided into control group ( = 33), 15-frequency group ( = 44), 30-frequency group ( = 40) and 60-frequency group ( = 43), and the latter three experimental groups participated in a specially designed physical activity plan based on the training principles of ciliary muscle, while the control group participated in normal physical activity as usual. The experimental intervention period was 16 weeks, and all students' kinetic visual acuity and uncorrected distance visual acuity were measured before and after the experiment. The result showed that the kinetic visual acuity of the students in the 30 and 60-frequency groups got improved significantly after the experiment ( < 0.05), with the highest improvement occurring in the 30-frequency group, while there was no significant change in the 15-frequency group and the control group; The uncorrected distance visual acuity of the students in the 30 and 60-frequency groups was significantly improved after the experiment ( < 0.05), and the improvement range in these two groups was similar. In contrast, there was no significant change in the 15-frequency group, while the control group showed a significant decrease ( < 0.05). Physical activity combined with extra ciliary-muscle training has a positive effect on improving children's vision; at the same time, ciliary-muscle training with different frequencies bring out different outcomes on children's vision improvement, among which ciliary-muscle training with frequency of 30 in each physical education class is the best choice to enhance children's kinetic visual acuity and uncorrected distance visual acuity.
本研究旨在探讨不同频率的睫状肌训练与体育活动相结合对儿童运动性视觉敏锐度和未矫正远视力的影响，最终确定每节体育课进行睫状肌训练的最佳频率。为此，研究者从苏州一所学校（位于中国华东地区江苏省东南部的一个主要城市）中随机抽取了 160 名 10-11 岁的学生，将他们分为对照组（n=33）、15 次频率组（n=44）、30 次频率组（n=40）和 60 次频率组（n=43）。后三组实验组根据睫状肌训练原理参与了专门设计的体育活动计划，而对照组则像往常一样参加正常的体育活动。实验干预期为 16 周，所有学生在实验前后均测量了运动性视觉敏锐度和未矫正远视力。结果显示，实验组中 30 次和 60 次频率组的学生在实验后运动性视觉敏锐度显著提高（<0.05），其中 30 次频率组的提高幅度最大，而 15 次频率组和对照组没有明显变化；实验组中 30 次和 60 次频率组的学生未矫正远视力在实验后显著提高（<0.05），且这两组的提高幅度相似，相比之下，15 次频率组没有明显变化，而对照组则显著下降（<0.05）。体育活动与额外的睫状肌训练相结合对改善儿童视力有积极作用；同时，不同频率的睫状肌训练对儿童视力改善效果不同，其中每节体育课进行 30 次的睫状肌训练是增强儿童运动性视觉敏锐度和未矫正远视力的最佳选择。
