Li Xin, Lu Zhenghui, Sun Dong, Xuan Rongrong, Zheng Zhiyi, Gu Yaodong
Faculty of Sports Science, Ningbo University, Ningbo 315211, China.
The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315211, China.
Bioengineering (Basel). 2022 May 31;9(6):241. doi: 10.3390/bioengineering9060241.
Background: Changes in physical shape and body mass during pregnancy may increase the risk of walking falls. Shoes can protect and enhance the inherent function of the foot, helping to maintain dynamic and static stability. Methods: Sixteen women during the third trimester of pregnancy participated in this study to investigate the effect of negative heel shoes (NHS), positive heel shoes (PHS), and normal shoes (NS) on spatiotemporal parameters, ground reaction force (GRF), and stability. Differences in spatiotemporal parameter, GRF, and center of pressure (COP) between footwear conditions were examined using Statistical Parametric Mapping (SPM) and repeated measures analyses of variance (ANOVA). Results: The walking speed and step length increased with the increase in heel-toe drop. The anterior-posterior (AP)-COP in NHS decreased significantly (p < 0.001). When wearing NHS, peak posterior angles were significantly lower than NS and PHS (p < 0.05). Conclusions: The results show that changing the heel-toe drop can significantly affect the gait pattern of pregnant women. Understanding the gait patterns of pregnant women wearing shoes with different heel-toe drops is very important for reducing the risk of injury and equipment design.
孕期身体形态和体重的变化可能会增加行走时跌倒的风险。鞋子可以保护并增强足部的固有功能，有助于维持动态和静态稳定性。方法：16名处于妊娠晚期的女性参与了本研究，以调查负跟鞋（NHS）、正跟鞋（PHS）和普通鞋（NS）对时空参数、地面反作用力（GRF）和稳定性的影响。使用统计参数映射（SPM）和重复测量方差分析（ANOVA）来检验不同鞋类条件下时空参数、GRF和压力中心（COP）的差异。结果：步速和步长随着前后落差的增加而增加。NHS中前后向COP显著降低（p < 0.001）。穿着NHS时，后峰值角度显著低于NS和PHS（p < 0.05）。结论：结果表明，改变前后落差会显著影响孕妇的步态模式。了解穿着不同前后落差鞋子的孕妇的步态模式对于降低受伤风险和设备设计非常重要。
