US Patent 12008839 Golf club and other object fitting using quantitative biomechanical-based analysis

Systems and methods are disclosed for generating a 3D avatar and object fitting recommendations using a biomechanical analysis of observed actions with a focus on representing actions through computer-generated 3D avatars. Physical quantities of biomechanical actions can be measured from the observations, and the system can analyze these values, compare them to target or optimal values, and use the observations and known biomechanical capabilities to initiate a payment transaction for an object offered by a merchant that corresponds with the recommendation.