Abstract
RESUMO Este estudo teve como objetivo avaliar as características baropodométricas durante a fase de apoio da marcha em escadas e rampa de sujeitos com e sem síndrome da dor patelofemoral (SDPF). Participaram 55 indivíduos do gênero feminino, 24 com SDPF (GSDPF) e 31 clinicamente saudáveis (GC), pareados em idade, estatura e massa corporal. Foram avaliadas as variáveis pico de pressão, área de contato e tempo de contato em seis regiões plantares (antepé medial, antepé lateral, médio pé, retropé medial, retropé central e retropé lateral), por meio do sistema Pedar-X, durante a realização de quatro atividades funcionais (subir e descer escadas e rampa). A ordem de realização das avaliações foi randomizada. A intensidade da dor dos sujeitos antes e após as atividades foi avaliada pela Escala Visual Numérica (EVN). Os dados foram analisados por meio da estatística descritiva e inferencial (Testes T-independente, Wilcoxon e ANOVA 2x6), com nível de significância de p≤0,05. Não foram observadas diferenças entre os grupos em relação ao pico de pressão, área de contato e tempo de contato nas seis regiões plantares analisadas durante as quatro atividades funcionais. Houve exacerbação da dor dos sujeitos após a realização das quatro atividades funcionais (p=0,01). Sendo assim, os resultados deste estudo, nas condições experimentais utilizadas, sugerem que não existe um padrão de comportamento em relação às variáveis baropodométricas estudadas que diferencie sujeitos com e sem SDPF durante as atividades de subir e descer escadas e rampa.
Highlights
Patellofemoral Pain Syndrome (PFPS) is characterized as a diffuse pain in the anterior region of the knee[1], usually of insidious onset and slow progression[2,3]
Some studies were conducted to investigate biomechanical patterns adopted by subjects with PFPS during the performance of functional activities, noting changes in the electromyographic activity of vastus[8], in ground reaction forces[9], in kinematics[7,9,10,11,12,13,14,15,16], and in plantar pressure distribution[17,18,2]
It is believed that subjects with PFPS can change their walking patterns as a strategy for reducing pain during the performance of functional activities, and this could lead to changes in plantar pressure distribution, reducing contact time and peak pressure of the member with pain compared with the control group
Summary
Patellofemoral Pain Syndrome (PFPS) is characterized as a diffuse pain in the anterior region of the knee[1], usually of insidious onset and slow progression[2,3]. Its signs and symptoms are exacerbated mainly during the performance functional activities, among which we can highlight movements for climbing up and down stairs and sloping surfaces[6,7] In this sense, some studies were conducted to investigate biomechanical patterns adopted by subjects with PFPS during the performance of functional activities, noting changes in the electromyographic activity of vastus[8], in ground reaction forces[9], in kinematics[7,9,10,11,12,13,14,15,16], and in plantar pressure distribution[17,18,2]. It is believed that subjects with PFPS can change their walking patterns as a strategy for reducing pain during the performance of functional activities, and this could lead to changes in plantar pressure distribution, reducing contact time and peak pressure of the member with pain compared with the control group
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