Impact of body composition on plantar pressure among 6-15 years old children and adolescents

Objective The aim of this study was to investigate the correlation between the indices of body pressure and body composition among children aged 6-15 years,as well as to understand the impact of body composition on plantar pressure for foot disease prevention in children.Methods Body composition and plantar pressure was measured among healthy children and adolescents aged 6-15 years old random selected from one primary school and one middle school in Haidian District of Beijing.All the 1 000 participants were classified into age-and sex-specific groups,each age group consisted of 50 boys and 50 girls.Relationship between body composition and plantar pressure were analyzed by Pearson correlation analysis.Results Significant negative correlations were found between peak pressure,body weight and relative fat free mass(P<0.05),while positive relation between relative fat mass and BMI was found(P<0.05).Among boys,relative peak force negatively correlated with body weight,relative fat free mass and BMI(P<0.05),and positively correlated with relative fat mass (P<0.05).In girls,peak pressure positively correlated with body weight,relative fat mass and BMI(P<0.05),and negatively correlated with relative fat free mass(P<0.05).Significant negative correlations were found between relative peak force with body mass,relative fat mass and BMI(P<0.05),and positive correlation was found with relative fat free mass(P<0.05).In some other areas showed opposite correlations.Conclusion Foot pressure among healthy children and adolescent relates with body composition,with significant sex difference.