مدل سازی بیومکانیکی منتخبی از روش های حمل بار، با هدف افزایش توان رزمی نیروهای نظامی

Objective: The purpose of this study was to develop a model to compare some selected methods of load carriage during sitting and rising, and to introduce the best method of reducing power consumption and the risk of injury among military men. Methods: Ten subjects were selected to perform the required task to determine anatomical constraints, kinematic data and to extract some parameters for modeling. Subsequently, the center of mass position of four equipment for load carriage, including, Backpack, Double pack, Trunk vest and Double satchel, were determined and four different two- dimensional models of body with four segments were developed based on inverse dynamics equations. After applying constraints and cost functions, genetic algorithm was used to find the optimal model. Results: Based on the results, power consumption in Backpack method was the lowest and double satchel method inserted the least momentum on hip torque. Conclusion: A more practical choice for military operations is to carry a load as close as possible to the center of mass of the body in a nutshell, between all methods, carrying load through the Backpack method, according to its capabilities, is the best choice for carrying heavy and bulky equipment.