| Title: |
Subgroups of Foot-Ankle Movement Patterns Can Influence the Responsiveness to a Foot-Core Exercise Program: A Hierarchical Cluster Analysis |
| Authors: |
Watari, Ricky; Suda, Eneida Y.; Santos, João P. S.; Matias, Alessandra B.; Taddei, Ulisses T.; Sacco, Isabel C. N. |
| Contributors: |
Fundação de Amparo à Pesquisa do Estado de São Paulo; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior; Conselho Nacional de Desenvolvimento Científico e Tecnológico |
| Source: |
Frontiers in Bioengineering and Biotechnology ; volume 9 ; ISSN 2296-4185 |
| Publisher Information: |
Frontiers Media SA |
| Publication Year: |
2021 |
| Collection: |
Frontiers (Publisher - via CrossRef) |
| Description: |
The purpose of this study is to identify homogenous subgroups of foot-ankle (FA) kinematic patterns among recreational runners and further investigate whether differences in baseline movement patterns can influence the mechanical responses to a foot-core exercise intervention program. This is a secondary analysis of data from 85 participants of a randomized controlled trial ( clinicaltrials.gov – NCT02306148) investigating the effects of an exercise-based therapeutic approach focused on FA complex. A validated skin marker-based multi-segment foot model was used to acquire kinematic data during the stance phase of treadmill running. Kinematic features were extracted from the time-series data using a principal component analysis, and the reduced data served as input for a hierarchical cluster analysis to identify subgroups of FA movement patterns. FA angle time series were compared between identified clusters and the mechanical effects of the foot-core exercise intervention was assessed for each subgroup. Two clusters of FA running patterns were identified, with cluster 1 ( n = 36) presenting a pattern of forefoot abduction, while cluster 2 ( n = 49) displayed deviations in the proximal segments, with a rearfoot adduction and midfoot abduction throughout the stance phase of running. Data from 29 runners who completed the intervention protocol were analyzed after 8-weeks of foot-core exercises, resulting in changes mainly in cluster 1 ( n = 16) in the transverse plane, in which we observed a reduction in the forefoot abduction, an increase in the rearfoot adduction and an approximation of their pattern to the runners in cluster 2 ( n = 13). The findings of this study may help guide individual-centered treatment strategies, taking into account their initial mechanical patterns. |
| Document Type: |
article in journal/newspaper |
| Language: |
unknown |
| DOI: |
10.3389/fbioe.2021.645710 |
| DOI: |
10.3389/fbioe.2021.645710/full |
| Availability: |
https://doi.org/10.3389/fbioe.2021.645710; https://www.frontiersin.org/articles/10.3389/fbioe.2021.645710/full |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.975A7B21 |
| Database: |
BASE |