Bovonsunthonchai Sunee, Thong-On Suthasinee, Vachalathiti Roongtiwa, Intiravoranont Warinda, Suwannarat Sarawut, Smith Richard
Faculty of Physical Therapy, Mahidol University, Nakhon Pathom, Thailand.
Physical Therapy Center, Faculty of Physical Therapy, Mahidol University, Bangkok, Thailand.
Acta Bioeng Biomech. 2019;21(4):73-82.
The objective of this study was to compare the ground reaction forces (GRFs) and the multi-segment foot motion between individuals with plantar fasciitis (PF) and healthy controls.
Twenty-one individuals with PF and 21 matched-case healthy controls who passed the criteria participated in the study. Gait data were assessed during their self-selected comfortable speeds by the 3D motion analysis system. The multi-segment foot motions were determined by the Oxford Foot Model. Outcome measures included the vertical and antero-posterior ground reaction forces (GRFs) and the multi-segment foot motions [the dorsiflexion (DF), plantarflexion (PF), inversion (Inv), eversion (Eve), adduction (Add), and abduction (Abd) peak angles for the forefoot with respect to hindfoot (FFHF) and the DF, PF, Inv, Eve, internal rotation (IR), and external rotation (ER) peak angles for the hindfoot with respect to tibia (HFTB) as well as their ranges (R)].
Comparisons between individuals with PF and healthy controls showed no significant differences in any of the GRFs. Significant reductions were found in the FFHF-DF, FFHF-DF-R, FFHF-Inv, and HFTB-Inv/Eve-R in individuals with PF. In addition, there were tendencies of the increased angles of the FFHF-PF, HFTB-DF, HFTB-Inv, and HFTB-ER, but not significantly for individuals with PF, compared to healthy controls.
Adaptations of the intra-foot motion showed the reduction of some angles but no change for the GRFs in individuals with PF compared to the healthy controls when both groups walked at a similar gait speed.
本研究的目的是比较足底筋膜炎（PF）患者与健康对照组之间的地面反作用力（GRF）和多节段足部运动。
21名符合标准的PF患者和21名匹配的健康对照者参与了本研究。通过三维运动分析系统在他们自我选择的舒适速度下评估步态数据。多节段足部运动由牛津足部模型确定。结果测量包括垂直和前后地面反作用力（GRF）以及多节段足部运动[前足相对于后足的背屈（DF）、跖屈（PF）、内翻（Inv）、外翻（Eve）、内收（Add）和外展（Abd）峰值角度（FFHF）以及后足相对于胫骨的DF、PF、Inv、Eve、内旋（IR）和外旋（ER）峰值角度（HFTB）及其范围（R）]。
PF患者与健康对照组之间的比较显示，任何GRF均无显著差异。PF患者的FFHF-DF、FFHF-DF-R、FFHF-Inv和HFTB-Inv/Eve-R显著降低。此外，与健康对照组相比，PF患者的FFHF-PF、HFTB-DF、HFTB-Inv和HFTB-ER角度有增加的趋势，但无显著差异。
当两组以相似的步态速度行走时，与健康对照组相比，PF患者足部内运动的适应性表现为一些角度减小，但GRF无变化。
