Bishop Christopher, Arnold John B, May Thomas
1Alliance for Research in Exercise, Nutrition and Activity (ARENA), School of Health Sciences, University of South Australia, City East Campus, Adelaide, AUSTRALIA; 2Sansom Institute for Health Research, School of Health Sciences, University of South Australia, Adelaide, AUSTRALIA; and 3School of Health Sciences, University of South Australia, City East Campus, Adelaide, AUSTRALIA.
Med Sci Sports Exerc. 2016 Apr;48(4):689-96. doi: 10.1249/MSS.0000000000000807.
There is a paucity of evidence on the biomechanical effects of foot taping and foot orthoses in realistic conditions. This study aimed to determine the immediate effect and relationships between changes in multisegment foot biomechanics with foot taping and customized foot orthoses in adults with flat-arched feet.
Multisegment foot biomechanics were measured in 18 adults with flat-arched feet (age 25.1 ± 2.8 yr; height 1.73 ± .13 m, body mass 70.3 ± 15.7 kg) during walking in four conditions in random order: neutral athletic shoe, neutral shoe with tape (low-Dye method and modified method) and neutral shoe with customized foot orthoses. In-shoe foot biomechanics were compared between conditions using a purpose developed foot model with three-dimensional kinematic analysis and inverse dynamics.
Foot orthoses significantly delayed peak eversion compared to the neutral shoe (44% stance vs 39%, P = 0.002). Deformation across the midfoot and medial longitudinal arch was reduced with both the low-Dye taping (2.4°, P < 0.001) and modified taping technique (5.5°, P < 0.001). All interventions increased peak dorsiflexion of the first metatarsophalangeal joint (1.4°-3.2°, P < 0.001-0.023). Biomechanical responses to taping significantly predicted corresponding changes to foot orthoses (R2 = 0.08-0.52, P = 0.006 to <0.001).
Foot orthoses more effectively altered timing of hindfoot motion whereas taping was superior in supporting the midfoot and medial longitudinal arch. The biomechanical response to taping was significantly related to the subsequent change observed with the use of foot orthoses.
在实际情况下，关于足部贴扎和足部矫形器生物力学效应的证据不足。本研究旨在确定扁平足成年人使用足部贴扎和定制足部矫形器后多节段足部生物力学变化之间的即时效应及关系。
对18名扁平足成年人（年龄25.1±2.8岁；身高1.73±0.13米，体重70.3±15.7千克）在四种随机顺序的条件下行走时的多节段足部生物力学进行测量：中性运动鞋、带贴扎的中性鞋（低染料法和改良法）以及带定制足部矫形器的中性鞋。使用专门开发的足部模型进行三维运动学分析和逆动力学，比较不同条件下鞋内的足部生物力学。
与中性鞋相比，足部矫形器显著延迟了外翻峰值（支撑期44% vs 39%，P = 0.002）。低染料贴扎（2.4°，P < 0.001）和改良贴扎技术（5.5°，P < 0.001）均降低了中足和内侧纵弓的变形。所有干预措施均增加了第一跖趾关节的背屈峰值（1.4° - 3.2°，P < 0.001 - 0.023）。贴扎的生物力学反应显著预测了足部矫形器的相应变化（R2 = 0.08 - 0.52，P = 0.006至<0.001）。
足部矫形器能更有效地改变后足运动时间，而贴扎在支撑中足和内侧纵弓方面更具优势。贴扎的生物力学反应与使用足部矫形器后观察到的后续变化显著相关。
