In this study. to discuss the influence of concussion risk from the long-term use of American football helmets on collegiate teams. accident cases during the game are replicated based on game videos by simulations using whole-body numerical models and helmeted finite element human head models. The concussion risks caused by collisions were estimated using the mechanical parameters ins... https://safeersappliancers.shop/product-category/hide-built-in-60cm-a-electric-single-oven-stainless/