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ORIGINAL RESEARCH article
Front. Public Health
Sec. Children and Health
Volume 12 - 2024 |
doi: 10.3389/fpubh.2024.1467651
The Impact of Physical Exercise with Additional Visual Tasks on UDVA and Accommodation Sensitivity in Children: The Mediating Role of Kinetic Visual Acuity
Provisionally accepted
Miyu Wang
Guiming Zhu
*
Yihua Li
*
Pengfei Li
*
Haijie Shi
*
Limei Jiang
*
Yucui Diao
*
Rongbin Yin
*- Soochow University, Suzhou, China
Purpose: This study investigates the impact of physical exercise supplemented with visual tasks on children's uncorrected distance visual acuity (UDVA), kinetic visual acuity (KVA), and accommodative sensitivity, with an analysis of the mediating role of KVA.A total of 168 third-grade students from four natural classes in a primary school in Suzhou City were randomly assigned to either an experimental group (n=86) or a control group (n=82). The experimental group engaged in 30 cycles of ciliary muscle training tasks with visual targets presented for 3 seconds during physical exercises, while the control group participated in regular physical exercises. The intervention lasted 16 weeks, during which KVA, UDVA, and accommodative sensitivity of children were measured before and after the intervention using a kinetic visual acuity tester, a standard logarithmic visual acuity chart lightbox, and a lens flipper.Results: Post-intervention, the experimental group showed significant improvements in KVA, UDVA, and accommodative sensitivity (P<0.05). The control group did not show significant changes in KVA and UDVA (P>0.05), but did exhibit a significant improvement in accommodative sensitivity(P<0.05). Additionally, children in the experimental group demonstrated significantly higher levels of KVA, UDVA, and accommodative sensitivity compared to the control group after the intervention (P<0.05). A moderate positive correlation was found between KVA and both UDVA and accommodative sensitivity. KVA partially mediated the effect of additional visual tasks during physical exercise on UDVA in children (left eye 95% CI:0.011-0.180; right eye 95% CI:0.023- 0.167). Moreover, KVA partially mediated the effect of additional visual tasks during physical exercise on accommodative sensitivity (95% CI:0.021-0.245).Incorporating additional visual tasks into physical exercise effectively enhances KVA, UDVA, and accommodative sensitivity in children. There is a significant positive correlation between KVA and UDVA as well as between KVA and accommodative sensitivity. These visual tasks directly impact UDVA and accommodative sensitivity and indirectly influence them through the mediating effect of KVA.
Keywords: physical exercise, Children, Kinetic visual acuity, Uncorrected distance visual acuity, accommodative sensitivity
Received: 20 Jul 2024; Accepted: 26 Nov 2024.
Copyright: © 2024 Wang, Zhu, Li, Li, Shi, Jiang, Diao and Yin. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Guiming Zhu, Soochow University, Suzhou, China
Yihua Li, Soochow University, Suzhou, China
Pengfei Li, Soochow University, Suzhou, China
Haijie Shi, Soochow University, Suzhou, China
Limei Jiang, Soochow University, Suzhou, China
Yucui Diao, Soochow University, Suzhou, China
Rongbin Yin, Soochow University, Suzhou, China
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