Dynamic Diagonal Model (DDM): A Testable Hypothesis for Efficient Human Coordination

The Dynamic Diagonal Model (DDM) proposes that the human neuromuscular system can access a distinct coordination regime characterized by spiral fascial organization, deep stabilizer prioritization, and lower metabolic cost. Key predictions: - ≥5% reduction in VO₂ during standard motor tasks - Decreased EMG amplitude in postural muscles - Improved kinematic coherence - Reduced perceived effort This document establishes priority for the DDM hypothesis and invites scientific collaboration for rigorous validation.