Sport psychology is shifting toward interventions that produce empirically measurable changes over time, particularly in high-precision sports. In this study, we combined wearable technology and eye-tracking to evaluate a multi-modal intervention designed to improve performance accuracy in elite-level archers. Thirty participants underwent baseline testing using Pupil Labs eye-trackers and heart rate variability (HRV) sensors linked to the Kubios platform. Initial assessments showed elevated heart rates, a dominance of sympathetic nervous system activation, and infrequent activation of Quiet Eye fixations. These physiological and attentional markers were recorded alongside a performance accuracy score over 15 arrows.


Participants were then evenly assigned to one of three groups: a breathwork group, a Functional Imagery Training (FIT) group, or a control group. The FIT intervention followed a structured three-phase sequence: an initial breath cue, a guided imagery phase rooted in FIT principles, and a final eye-dwelling stage designed to trigger Quiet Eye activation. All groups continued their regular training routines throughout the four week intervention period.


Upon retesting, both intervention groups demonstrated significant improvements in performance archery scores, while the control group showed no change. Physiological data revealed a clear shift toward parasympathetic dominance during final performance tasks in the intervention groups, indicating improved autonomic regulation under pressure. Importantly, the FIT group outperformed both the breathwork and control groups, achieving the highest gains in both accuracy and physiological control.


These findings suggest that a formalised, three-phase psychological skills model can be effectively taught to athletes in precision sports to enhance both performance and physiological adaptation. Integrating breath control, motivational imagery, and gaze regulation offers a powerful framework for delivering tangible gains in elite sporting contexts, supported by real-time biometric and attentional data.