Effect of foot posture on plantar support during gait of adult beginners in running

Autores

  • Lucas Guilherme Oliveira da Silva University Santo Amaro, Sao Paulo, Brazil.
  • Warlindo Carneiro da Silva Neto University Santo Amaro, School of Medicine, Health Science Post-Graduate Department, Sao Paulo, Brazil.
  • Daniel Borges Pereira University Santo Amaro, Health Science Post-Graduate Department, Sao Paulo, Brazil
  • Ana Paula Ribeiro Universidade University Santo Amaro, Sport Medicine, Health Science Post-Graduate Department, São Paulo, Brazil. https://orcid.org/0000-0002-1061-3789

Palavras-chave:

running, posture, plantar pressure, foot, gait.

Resumo

ABSTRACT

OBJECTIVE: Running is a sport activity that has been growing worldwide. However, most beginner runners are affected by injuries, with the foot type and plantar overload being the main risk factors for its appearance. The purpose of this study was to verify the effect of foot posture on the plantar load distribution of beginning runners. METHODS: 114 novice runners from sports clubs in the state of São Paulo, with a rearfoot running pattern, were evaluated. The type of foot posture was evaluated using the plantar arch index recorded by the podoscope. Thus, runners were divided into three groups: cavus feet (CF, n=47), normal feet (NF, n=34) and flat feet (FF, n=33). Plantar pressure distribution was assessed using the pressure platform (Loran®,Italy), considering the feet regions (forefoot, midfoot and medial and lateral rearfoot). The variables measured were: maximum force and peak pressure. Analysis of Variance, followed by Tukey's post-hoc was performed, considering differences p<0.05. RESULTS: Runners with cavus feet (high plantar arch) had higher peak pressure in the forefoot area and lateral rearfoot, such as maximum force on lateral rearfoot, in relation to groups with normal and flat feet, but decreased in the midfoot area. In the medial rearfoot, there were no differences observed between the groups. However, runners with flat feet reduced peak pressure over the forefoot and rearfoot areas (medial and lateral), but increased over the midfoot, when compared to cavus and normal feet. CONCLUSION: Beginner runners with cavus feet posture increase the plantar load over the forefoot and lateral reartfoot regions while flat feet increase over the midfoot. These findings help to understand the need for gait training to improve the plantar load distribution pattern. DESCRIPTORS: Running. Posture. Plantar pressure. Foot. Gait.

 

RESUMO

OBJETIVO: Verificar o efeito da postura do pé na distribuição da carga plantar de corredores iniciantes. MÉTODOS: foram avaliados 114 corredores iniciantes de clubes esportivos do estado de São Paulo, com padrão de corrida no retropé. O tipo de postura do pé foi avaliado por meio do índice do arco plantar registrado pelo podoscópio. Assim, os corredores foram divididos em três grupos: pés cavos (CF, n=47), pés normais (NF, n=34) e pés planos (FF, n=33). A distribuição da pressão plantar foi avaliada por meio da plataforma de pressão (Loran®, Itália), considerando as regiões dos pés (antepé, mediopé e retropé medial e lateral). As variáveis ​​medidas foram: força máxima e pressão de pico. Foi realizada análise de variância seguida do post-hoc de Tukey, considerando diferenças p <0,05. RESULTADOS: Corredores com pés cavos (arco plantar alto) apresentaram maiores picos de pressão na região do antepé e retropé lateral, como força máxima no retropé lateral, em relação aos grupos com pés normais e planos, mas diminuíram na região do médio pé. No retropé medial, não foram observadas diferenças entre os grupos. No entanto, os corredores com pés chatos reduziram o pico de pressão nas áreas do antepé e retropé (medial e lateral), mas aumentaram no médio-pé, quando comparados aos pés cavos e normais. CONCLUSÃO: Corredores iniciantes com postura de pés cavos aumentam a carga plantar sobre as regiões do antepé e retropé lateral, enquanto os pés planos aumentam sobre o médio-pé. Esses achados ajudam a entender a necessidade do treinamento de marcha para melhorar o padrão de distribuição de carga plantar. DESCRITORES: Corrida. Postura. Pressão plantar. Pé. Marcha.

 

 

Arquivos adicionais

Publicado

2020-11-27