Department of Sports Science, R.O.C. Military Academy, Kaohsiung, Taiwan.
Department of Tourism Leisure and Health, Deh Yu College of Nursing and Health, Keelung, Taiwan.
PeerJ. 2024 Mar 26;12:e17173. doi: 10.7717/peerj.17173. eCollection 2024.
Table tennis is an asymmetric sport involving the powerful forward swing of the upper limbs depends on the solid support of the lower limbs. The foot drive really affects the weight balance and stroke accuracy even though the distance and momentum of the lower limb displacement are limited within a limited range. Given that previous research on table tennis has typically focused on the footwork and stroke performance of professional players, the study aimed to investigate the daily static and dynamic plantar load distribution as well as the centers of gravity balance and rearfoot posture among Taiwanese college elite table tennis players.
This is a cross-sectional study of 70 elite male table tennis players (age: 20.0 ± 0.9 years; height: 173.4 ± 5.1 cm, weight: 67.6 ± 5.3 kg, experience: 10.0 ± 1.6 years) and 77 amateur table tennis players of the same gender (age: 20.1 ± 0.8 years, height: 167.4 ± 4.4 cm, weight: 64.3 ± 4.0 kg, experience: 4.4 ± 1.2 years) from Taiwanese universities. The JC Mat optical plantar pressure analyzer was applied to determine the plantar load distribution along with arch index (AI) and centers of gravity balance. Assessment of rearfoot postural alignment was mainly used to contrast the performance of the centers of gravity balance.
The static arch indices of both feet in the elite group were symmetrical and considered normal arches (AI: 0.22 ± 0.07) during their non-training and non-competition daily lives. Their static plantar loads were symmetrically concentrated on the bipedal lateral metatarsals ( < 0.05) as well as shifted to the medial and lateral heels ( < 0.05) and the lateral metatarsals ( < 0.05) during the walking midstance phase. Additionally, the plantar loads were mainly applied to the bipedal medial ( < 0.01) and lateral heels ( < 0.05) during the transitional changes between both states. Elite athletes had symmetrical and evenly distributed centers of gravity on both feet (left: 50.03 ± 4.47%; right: 49.97 ± 4.47%) when standing statically, along with symmetrical rearfoot angles and neutral position of the subtalar joint (left: 2.73 ± 2.30°; right: 2.70 ± 2.32°) even though they were statistically lower than those of the amateur athletes ( < 0.05).
The daily static and dynamic foot patterns of Taiwanese college elite table tennis players were characterized by plantar load distribution on the lateral metatarsals and the entire calcaneus along with balanced centers of gravity and normal rearfoot posture. This foot and posture layout outlines the excellent athletic performance of the foot and ankle in professional athletes. Portions of this text were previously published as part of a preprint (https://doi.org/10.21203/rs.3.rs-2993403/v1).
乒乓球是一项非对称运动，上肢的强力前挥依赖于下肢的稳固支撑。尽管下肢的位移距离和动量受到限制，但下肢的蹬地确实会影响到身体的平衡和击球的准确性。鉴于之前的乒乓球研究通常集中在职业运动员的脚步动作和击球表现上，本研究旨在调查台湾高校精英乒乓球运动员的日常静态和动态足底负荷分布以及重心平衡和后足姿势。
这是一项横断面研究，共纳入 70 名男性精英乒乓球运动员（年龄：20.0 ± 0.9 岁；身高：173.4 ± 5.1cm，体重：67.6 ± 5.3kg，经验：10.0 ± 1.6 年）和 77 名来自台湾高校的同性别业余乒乓球运动员（年龄：20.1 ± 0.8 岁，身高：167.4 ± 4.4cm，体重：64.3 ± 4.0kg，经验：4.4 ± 1.2 年）。使用 JC Mat 光学足底压力分析仪确定足底负荷分布以及足弓指数（AI）和重心平衡。后足姿势的评估主要用于对比重心平衡的表现。
精英组在非训练和非比赛的日常生活中，双脚的静态足弓指数均呈对称分布，且被认为是正常足弓（AI：0.22 ± 0.07）。他们的静态足底负荷对称集中在双足的外侧跖骨（<0.05），并向内侧和外侧足跟（<0.05）以及外侧跖骨（<0.05）转移。此外，在两种状态之间的过渡变化期间，足底负荷主要作用于双足的内侧（<0.01）和外侧足跟（<0.05）。精英运动员在静态站立时，双脚的重心对称且均匀分布（左：50.03 ± 4.47%；右：49.97 ± 4.47%），后足角度和距下关节中立位也对称（左：2.73 ± 2.30°；右：2.70 ± 2.32°），尽管与业余运动员相比（<0.05），这些数值统计上较低。
台湾高校精英乒乓球运动员的日常静态和动态足部模式的特点是外侧跖骨和整个跟骨的足底负荷分布，以及平衡的重心和正常的后足姿势。这种足部和姿势布局突出了职业运动员足部和踝关节的出色运动表现。本文的部分内容之前已作为预印本的一部分发表（https://doi.org/10.21203/rs.3.rs-2993403/v1）。
