视觉因素和步高因素是否会导致双足和单足站立时的失衡？来自足底压力的视角。

Do visual and step height factors cause imbalance during bipedal and unipedal stances? A plantar pressure perspective.

作者信息

Guo Panjing, Wang Duoduo, Li Yumin, Wang Ruiqin, Xu Haoran, Han Jia, Lyu Jie

机构信息

College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, China.

School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China.

出版信息

Front Bioeng Biotechnol. 2023 Aug 17;11:1253056. doi: 10.3389/fbioe.2023.1253056. eCollection 2023.

DOI:10.3389/fbioe.2023.1253056

PMID:37662431

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10470124/

Abstract

The plantar pressure analysis technique was used to explore the static balance ability and stability of healthy adult males under the influence of visual and step height factors during bipedal and unipedal stances. Thirty healthy adult males volunteered for the study. Experiments used the F-scan plantar pressure analysis insoles to carry out with eyes open (EO) and eyes closed (EC) at four different step heights. The plantar pressure data were recorded for 10 s and pre-processed to derive kinematic and dynamic parameters. For unipedal stance, most of kinematic parameters of the subjects' right and left feet were significantly greater when the eyes were closed compared to the EO condition and increased with step height. The differences in toe load between right and left feet, open and closed eyes were extremely statistically significant ( < 0.001). The differences in midfoot load between the EO and EC conditions were statistically significant ( = 0.024) and extremely statistically significant between the right and left feet ( < 0.001). The difference in rearfoot load between EO and EC conditions was extremely statistically significant ( < 0.001) and statistically significant ( = 0.002) between the right and left feet. For bipedal stance, most of kinematic parameters of the subjects' EO and EC conditions were statistically significant between the right and left feet and increased with step height. The overall load's difference between EO and EC states was statistically significant ( = 0.003) for both feet. The overall load's difference between the right and left feet was extremely statistically significant ( < 0.001) in the EC state. The differences between the right and left feet of the forefoot and rearfoot load with EO and EC suggested that the right foot had a smaller forefoot load, but a larger rearfoot load than the left foot ( < 0.001). The differences between the forefoot and rearfoot load of the subjects' both feet with EO and EC were extremely statistically significant ( < 0.001). Both visual input and step height factors, even the dominant foot, act on kinematic and dynamic parameters that affect the maintenance of static balance ability.

摘要

采用足底压力分析技术，探究健康成年男性在视觉和步高因素影响下，双足和单足站立时的静态平衡能力与稳定性。30名健康成年男性自愿参与本研究。实验使用F-scan足底压力分析鞋垫，在四种不同步高下，分别于睁眼（EO）和闭眼（EC）状态下进行。记录10秒的足底压力数据，并进行预处理以得出运动学和动力学参数。对于单足站立，与睁眼状态相比，受试者左右脚的大多数运动学参数在闭眼时显著更大，且随步高增加。左右脚、睁眼和闭眼状态下的足尖负荷差异具有极显著统计学意义（<0.001）。睁眼和闭眼状态下的足中部负荷差异具有统计学意义（=0.024），左右脚之间具有极显著统计学意义（<0.001）。睁眼和闭眼状态下的足跟负荷差异具有极显著统计学意义（<0.001），左右脚之间具有统计学意义（=0.002）。对于双足站立，受试者睁眼和闭眼状态下的大多数运动学参数在左右脚之间具有统计学意义，且随步高增加。双脚在睁眼和闭眼状态下的总负荷差异具有统计学意义（=0.003）。在闭眼状态下，左右脚的总负荷差异具有极显著统计学意义（<0.001）。睁眼和闭眼状态下，前脚和后脚负荷在左右脚之间的差异表明，右脚的前脚负荷较小，但后脚负荷比左脚大（<0.001）。受试者双脚在睁眼和闭眼状态下的前脚和后脚负荷差异具有极显著统计学意义（<0.001）。视觉输入和步高因素，甚至优势脚，都会作用于影响静态平衡能力维持的运动学和动力学参数。