| Objective:To explore the features of surface electromyography (sEMG) in children with cerebral palsy (CP) in different conditions.Methods:100 children with CP and 30 healthy children as control group were assessed.The signals of both biceps brachii,triceps,tibialis anterior and gastrocnemius muscles were recorded.Testing processes were divided into passive motion and maximum isometric voluntary contraction (MIVC).Integrated electromyography (iEMG),median frequency (MF) and co-contraction ratio (CR) were analyzed.Results:During passive motion,the iEMG from the biceps brachiir and gastrocnemius muscles was increased with the worsening of the condition (P<0.05).During MIVC,the iEMG and MF from all muscles were decreased with the worsening of the condition,while the co-contraction ratio from the triceps and tibialis anterior was increased with the worsening of the condition (all P<0.05).Conclusion:The features of sEMG showed great difference between CP children and the controls.The time and frequency domain characteristics showed difference at the motor function levels. |
