Abstract Golf driving performance is driven by how effectively the athlete converts proximal rotational capacity into distal clubhead speed and impact impulse. High-Intensity Focused Electromagnetic (HIFEM) technology elicits supramaximal core contractions and has been linked to measurable increases in abdominal muscle thickness in imaging-based studies. Building on these findings, we present a performance-oriented theoretical framework that connects HIFEM-related gains in trunk torque capacity and neuromuscular timing to clubhead speed and ball speed. The downswing is modeled as a reduced-order five-segment rotational system, and we introduce a neuromechanical synchronization coefficient to quantify kinetic-chain ‘lag’ and phase alignment. The model provides a compact set of equations and a coaching-relevant interpretation: HIFEM can serve as a torque-and-timing accelerator for the pelvis–trunk complex, potentially improving energy transfer efficiency and impact impulse when integrated with swing practice and strength training. The framework generates clear testable predictions and practical measurement targets (torque surrogates, phase lag, clubhead speed, ball speed) to guide controlled trials and performance programs.
Fujimoto Takahiro (Sun,) studied this question.