Comparison of Core Muscle Activation at Different Hip Angles during Core Exercises Based on Dynamic Neuromuscular Stabilization

OBJECTIVES This study aims to compare core muscle activation at varying hip flexion angles during core exercises based on Dynamic Neuromuscular Stabilization (DNS). METHODS Nine healthy male participants, without musculoskeletal or hypertension disorders, performed core exercises at hip flexion angles of 45°, 90°, and 130°, while their muscle activation levels were measured using electromyography (EMG). RESULTS While differences in muscle activation were observed across all muscles depending on the hip flexion angle, significant results were found specifically in the rectus femoris, rectus abdominis, and external oblique muscles at different angles (p < 0.05). CONCLUSIONS These findings suggest that varying hip angles can selectively engage different core muscles, which may inform rehabilitation and strength training programs targeting specific areas of the core. Further research with a larger sample size and diverse populations is recommended to generalize these findings.