The Biomechanical Construction of Kinetic Chain Synergy in Competitive Recurve Archery

In competitive recurve archery, athletes must accumulate and instantaneously release energy under conditions that demand high stability and precision, forming a complex kinetic chain synergy system. Based on sports biomechanics and neural control theory, this study systematically analyzes the kinetic chain structure involved in archery movements, identifies the multi-level synergistic relationships among the shoulder–elbow–wrist force chain, the trunk stabilization chain, and the lower limb support chain, and explores the mechanical coupling characteristics at key nodes. On this basis, a multi-scale modeling framework incorporating temporal regulation, energy transmission, and synergy efficiency is constructed to reveal the mechanistic impact of synergy efficiency on archery performance and to clarify the mechanical bottlenecks that limit movement accuracy. Furthermore, the study proposes strategies for kinetic chain reconstruction and optimization, and establishes a performance consistency evaluation system, providing theoretical support and modeling tools for technical analysis and training interventions.