Introduction: Cardiovascular disease prevention in pediatrics is important. The aim of this research was to investigate the relationships and response of incremental exercise on inflammatory, immune and hormonal markers in pediatricsMaterials & methods: Thirty healthy non-active pediatrics boys with the age range of 9-11 years old participated voluntarily in this study, and were randomly divided into control (C; n=11) and exercise group (E; n=11). Blood and salivary samples were collected in the two stages: prior to GXT (Graded exercise test) exercise test and immediately after graded exercise test. ELISA method was used for measurement of salivary immunoglobulin A, C-reaction protein, cortisol and fibrinogen serum levels. The research data were analyzed using the Pearson correlation coefficient, Multiple Linear Regression, independent and paired t testFindings: CRP (p=0.043), fibrinogen (p=0.039) cortisol serum (p=0.001) and S-IgA (p=0.021), concentrations were significant increased immediately after the exercise in the exercise group. A significant relationship was observed between CRP and fibrinogen (r=0. 525, p=0.048), CRP and S-IgA (r=0. 621, p=0.022), CRP and cortisol serum (r=0.712, p=0.012), fibrinogen and S-IgA (r=0.638, p=0. 028), cortisol and fibrinogen serum (r=0.562, p=0.038), also cortisol and S-IgA (r=0.734, p=0.003) in the exercise group.Discussion & Conclusions: Incremental exercise not only significantly increases inflammatory immune-saliva and stress hormonal markers in non-active pediatrics, but also cardiovascular risk factors in this paediatrics. Rather reveals the close relationships between these indicators that can be effective in predicting cardiovascular risk factors in paediatrics.