Flow-Based Grounding Mechanism: A Biomechanical-Electrodynamic Hypothesis on Human Sole Resonance

This paper proposes a biomechanical–electrodynamic hypothesis called the Flow-Based Grounding Mechanism, suggesting that the human sole functions as a biological ground through the dynamic interaction of pressure, ionic movement, and conductive TPU layers. Unlike conventional “earthing shoes,” which rely on direct electrical contact with the ground, this model conceptualizes grounding as a continuous Flow — an integrated circulation of mechanical pressure and electric potential within a soft conductive medium. The proposed two-layer TPU structure (Shore A 80/85) with carbon conductive networks enables resonant redistribution of local potentials during walking, leading to periodic synchronization of nerve membrane voltages and muscular tensions. This study redefines earthing not as charge discharge, but as an oscillatory equilibrium between biomechanical tension and bioelectric flow.