This research investigates the kinematic characteristics of shoulder and scapula movement during the Arnold press exercise, focusing on the joints of interest including the acromion (l-ai), lateral tip of the scapula (l-ts), C7 vertebra, and T8 vertebra. Using motion capture technology, three-dimensional coordinates of these anatomical landmarks were recorded to capture the dynamic motion patterns. State space reconstruction was performed with optimized embedding dimensions determined to be 7 for l-ai, 8 for l-ts, and 1 for both C7 and T8. Recur- rence Quantification Analysis (RQA) was employed to analyze the recurrence properties of the reconstructed state space, revealing %recurrence rate values of 0.8933 for l-ai, 0.2358 for l-ts, 1.2973 for C7, and 1.2916 for T8.Additionally, recur- rence entropy values were computed to be 20.17 for l-ai, 26.18 for l-ts, 26.44 for C7, and 26.30 for T8, indicating the level of predictability and complexity in the motion patterns. Furthermore, Lyapunov exponents were calculated to assess the system’s sensitivity to initial conditions, with values of 0.3724 for l-ai, -0.3230 for C7, 0.2904 for T8, and 0.27 for l-ts. These findings provide valuable insights into the dynamic behavior and coordination of shoulder and scapula movement during the Arnold press exercise, with implications for optimizing exercise performance and injury prevention strategies.